Chicken Mushroom Pasta Bake – Easy 55-Minute Dinner

The Pasta Bake That Belongs on Every Weekly Dinner List

Pull a round glass baking dish of this chicken mushroom pasta bake from the oven and the entire kitchen smells like something remarkable is happening. Large shell pasta sits in a velvety garlic Parmesan cream sauce alongside seared seasoned chicken pieces, sliced cremini mushrooms, and what appears to be crispy bacon crumbles scattered throughout — all topped with a dusting of fresh herbs and grated Parmesan that’s just set from the oven’s heat. It’s the kind of dish that a full table of people goes quiet over.

What makes this version work is the layering of flavor before anything goes into the baking dish. The chicken gets a real sear. The mushrooms cook down until their moisture evaporates and their edges brown. The cream sauce is built with garlic and Parmesan before the pasta ever touches it. By the time the dish bakes, every component is already doing its job — and the oven simply brings it all together.

Recipe Quick Info

Why You’ll Love This Recipe

• The glass baking dish goes from oven to table. A round Pyrex-style dish retains heat well and presents beautifully on a marble or wooden surface — no transferring to a separate serving bowl required.
• Shell pasta captures every drop of the cream sauce. Large conchiglie shells trap sauce, mushroom pieces, and bits of chicken inside each curve, making every single scoop a complete bite.
• Bacon adds a smoky, savory crunch that the cream sauce needs. The crispy bacon crumbles visible throughout the finished dish aren’t just a garnish — they add textural contrast and a salty depth that ties all the other flavors together.
• Cremini mushrooms brown properly, not steam. Cooking mushrooms separately over high heat before adding to the sauce lets all their moisture evaporate and gives them golden, meaty edges rather than a pale, watery presence.
• 47 grams of protein per serving from real food. Chicken breast and Parmesan together carry the protein load without any supplements — and the bacon adds a small but meaningful additional contribution.
• Make-ahead and freezer friendly. Assemble the entire dish the night before, refrigerate, and bake when ready — or freeze fully assembled for up to 3 months with only a timing adjustment needed.
• The Parmesan cream sauce doesn’t need a roux. No flour or cornstarch thickening required — the sauce builds body from reduced cream and melted Parmesan alone, keeping it clean and glossy rather than heavy or gummy.

Ingredients

For the Chicken

• 1½ lbs boneless, skinless chicken breasts, sliced into 1½-inch pieces (as shown — chunky, lightly seared before baking)
• 1 tablespoon olive oil
• 1 teaspoon smoked paprika
• ½ teaspoon garlic powder
• ½ teaspoon Italian seasoning
• ½ teaspoon kosher salt
• ¼ teaspoon black pepper

For the Mushrooms and Bacon

• 8 oz cremini mushrooms, sliced (as shown — whole slices visible throughout the bake)
• 4 strips thick-cut bacon, cooked until crispy and crumbled (as visible throughout the dish)
• 1 tablespoon olive oil or bacon fat (for sautéing mushrooms)
• ¼ teaspoon kosher salt
• ¼ teaspoon black pepper

For the Pasta

• 12 oz large shell pasta (conchiglie — as shown, the curved shape captures the cream sauce inside each piece)
• 1 tablespoon kosher salt (for pasta water)

For the Garlic Parmesan Cream Sauce

• 3 tablespoons unsalted butter
• 5 cloves garlic, minced
• 2 cups heavy cream
• 1¼ cups freshly grated Parmesan cheese, divided
• ½ teaspoon black pepper
• ¼ teaspoon ground nutmeg
• Salt to taste
• ½ cup reserved pasta cooking water

For Garnish

• 2 tablespoons fresh flat-leaf parsley, finely chopped (as scattered across the top of the finished dish)
• Extra freshly grated Parmesan
• Freshly cracked black pepper

Optional Add-Ins

• ¼ teaspoon red pepper flakes (into the cream sauce for gentle heat)
• 1 cup baby spinach (wilted into the sauce just before baking)
• 1 tablespoon fresh thyme leaves (into the mushroom sauté for earthy depth)

Ingredient Substitutions

Kitchen Tools Needed

• Large pot (for boiling pasta)
• Colander
• Large skillet (12-inch stainless or cast iron — for searing chicken and sautéing mushrooms)
• Medium saucepan (for the cream sauce)
• Large mixing bowl (for combining pasta, sauce, and fillings before baking)
• Round glass baking dish (2.5–3 quart Pyrex-style, as shown — approximately 11 inches in diameter)
• Tongs
• Box grater (for Parmesan — never pre-shredded)
• Instant-read thermometer
• Aluminum foil

Step-by-Step Instructions

Step 1: Cook the Pasta

Bring a large pot of well-salted water to a rolling boil. Add the shell pasta and cook for 2 minutes less than the package directions — the shells will finish cooking in the oven and this early pull prevents them from becoming mushy in the bake. Before draining, scoop out ½ cup of the starchy cooking water and set it aside. Drain the shells and set aside in a large mixing bowl.

Step 2: Cook the Bacon

In the large skillet over medium heat, cook the bacon strips until fully crispy, about 6–8 minutes. Transfer to a paper towel-lined plate and let cool, then crumble into irregular pieces. Reserve the skillet with a thin layer of bacon fat — this is what you’ll use to sauté the mushrooms, and the flavor it imparts is significant.

Step 3: Sauté the Mushrooms

Increase the heat under the bacon fat skillet to medium-high. Add the sliced cremini mushrooms in a single layer — don’t stir them for the first 2 minutes. Once the bottom edges are golden, stir and cook for another 3–4 minutes until all the moisture has evaporated and the mushrooms are browned at the edges. Season with salt and pepper and transfer to the bowl with the pasta. Do not add moisture during this step — mushrooms need dry, high heat to brown properly rather than steam into softness.

Step 4: Sear the Chicken

Without wiping out the skillet, add 1 tablespoon of olive oil and heat over medium-high until shimmering. Toss the chicken pieces in the smoked paprika, garlic powder, Italian seasoning, salt, and pepper. Add to the skillet in a single layer and cook undisturbed for 2–3 minutes until a golden crust forms, then flip and cook 1–2 more minutes. The chicken does not need to be cooked through at this stage — it will finish in the oven. However, if pieces are thicker than 1½ inches, sear slightly longer so they reach at least 150°F before going into the bake; they’ll hit the USDA-required 165°F safe internal temperature for poultry during the oven bake. Transfer the seared chicken to the bowl with the pasta and mushrooms.

Step 5: Build the Garlic Parmesan Cream Sauce

In a medium saucepan over medium heat, melt the butter. Add the minced garlic and cook, stirring constantly, for 60–90 seconds until fragrant and lightly golden at the edges. Pour in the heavy cream and increase the heat to medium-high. Bring to a gentle simmer and let it cook for 5–6 minutes, stirring frequently, until reduced by about 20% and noticeably thicker. Add black pepper and nutmeg. Remove the saucepan from the heat and stir in 1 cup of the Parmesan in thirds, allowing each addition to melt fully before adding the next. Tip: Off-heat Parmesan addition is non-negotiable — adding cheese to boiling cream causes the proteins to seize and the sauce to turn grainy.

Step 6: Combine Everything and Transfer to the Baking Dish

Preheat your oven to 375°F. Pour the finished Parmesan cream sauce over the pasta, mushrooms, and chicken in the large mixing bowl. Add the crumbled bacon and toss everything together until the pasta shells are evenly coated and the components are well distributed. If the mixture looks thick, add 2–3 tablespoons of the reserved pasta water and toss again. Transfer the entire mixture to the round glass baking dish, spreading it into an even layer. Tip: Don’t pack the dish too tightly — you want some sauce visible around the edges so it stays creamy during baking rather than drying out.

Step 7: Top and Bake

Scatter the remaining ¼ cup of Parmesan across the top of the dish. Cover tightly with aluminum foil and bake at 375°F for 20 minutes. Remove the foil and bake for an additional 10–12 minutes uncovered until the top is lightly golden and the sauce is actively bubbling around the edges. Use an instant-read thermometer to verify the chicken pieces have reached 165°F before serving. Rest for 5 minutes, scatter fresh parsley across the top, and serve directly from the baking dish.

Pro Tips

1. Cook mushrooms in bacon fat, not olive oil. The rendered bacon fat left in the skillet after Step 2 carries smoky, savory depth that plain olive oil doesn’t. Using it for the mushroom sauté is free flavor that requires no extra ingredients.

2. Pull the pasta 2 full minutes early, not one. This dish bakes for 30+ minutes and the shells continue absorbing the cream sauce the entire time. Undercooked pasta going into the bake finishes perfectly; properly cooked pasta going in becomes too soft.

3. Reserve pasta water before every drain. Set a liquid measuring cup beside the pot as a reminder before you walk toward the sink. Starchy pasta water is the only effective tool for loosening a sauce that’s tightened too much before baking.

4. Let the finished bake rest 5 minutes before serving. The cream sauce continues thickening from residual heat as the bake sits. A 5-minute rest transforms a slightly loose sauce into one that holds beautifully when scooped into bowls.

5. Grate your own Parmesan from a block, always. Pre-shredded Parmesan is coated in anti-caking cellulose that prevents it from melting smoothly into cream. A block of Parmigiano-Reggiano grated fresh on the fine side of a box grater melts without any trace of graininess.

Common Mistakes to Avoid

1. Adding Parmesan to hot cream on the burner.
The proteins in Parmesan seize over direct high heat, clumping into grains instead of melting into a smooth sauce. Remove the saucepan from the burner completely before stirring in the cheese, and add it in thirds for the cleanest result.

2. Using pre-shredded or canned Parmesan.
Cellulose powder coating on pre-shredded cheese prevents clean melting and leaves the sauce with a grainy, powdery texture. For a dish where the sauce is the foundation, only freshly grated Parmesan from a block produces the right result.

3. Skipping the mushroom browning step.
Mushrooms added to the sauce without first browning them release water during baking that thins the cream and creates a watery bake. The 5-minute high-heat sauté to evaporate all moisture is not optional — it’s the step that keeps the sauce rich throughout baking.

4. Overcooking the pasta before baking.
Shells cooked to package-done doneness become mushy in the oven. Pull them 2 full minutes early, no exceptions. They’ll look slightly underdone when you drain them, and that’s exactly correct.

5. Skipping the foil for the first 20 minutes.
Baking uncovered from the start allows the top to brown before the center heats through, resulting in a dry top layer over a sauce that’s still loose below. The foil traps steam that finishes cooking everything evenly before the final uncovered browning.

6. Not checking the chicken’s internal temperature.
The chicken sears only partially before baking. Different oven temperatures and varying chicken piece sizes mean the only reliable way to confirm doneness is a thermometer reading of 165°F at the center of the thickest piece.

7. Packing the baking dish too tightly.
An overfilled dish traps excess steam and prevents the top from developing color during the uncovered portion of baking. Leave a small margin at the top of the dish and aim for an even, lightly packed layer rather than a dome.

Variations

Lighter Version

Replace heavy cream with 1½ cups of half-and-half plus 2 tablespoons of cream cheese blended smooth. Reduce Parmesan to 1 cup total. The sauce will be slightly thinner but still cohesive; the bake time remains unchanged. This swap saves approximately 70–80 calories per serving without significantly affecting the garlic-Parmesan flavor that defines the dish.

Vegetarian Version

Omit the chicken and bacon entirely. Replace the chicken with 1½ cups of drained, rinsed white cannellini beans added directly to the sauce before baking. Replace the bacon with 2 tablespoons of finely chopped sun-dried tomatoes, which provide a similar concentrated savory punch. Sauté the mushrooms in olive oil rather than bacon fat and increase mushrooms to 12 oz for added substance.

Spicy Version

Add 1 teaspoon of Calabrian chili paste to the butter before the garlic goes in, and increase smoked paprika on the chicken to 1½ teaspoons. The chili paste integrates completely into the cream sauce, producing a warm, building heat that doesn’t overpower the Parmesan but makes each bite noticeably more exciting. Finish with a scatter of red pepper flakes on top before the uncovered bake.

Gluten-Free Version

Use certified gluten-free large shell pasta — this shape is available from several quality brands. Every other component of this recipe is naturally gluten-free. Check your Italian seasoning and bacon labels for any hidden wheat-derived additives; most standard brands are gluten-free, but it’s worth verifying. No technique changes are needed.

Low-Carb Version

Replace the pasta shells entirely with 3 cups of halved Brussels sprouts, blanched for 3 minutes and drained well, or 3 cups of cauliflower florets roasted until slightly browned. The garlic Parmesan cream sauce, chicken, mushrooms, and bacon transfer identically. Bake at 375°F uncovered for 20–22 minutes total since the vegetables don’t need the foil-covered steam stage that pasta does.

What to Serve With This Recipe

• Simple arugula salad with lemon vinaigrette — the peppery bitterness and bright acid cut directly through the richness of the Parmesan cream.
• Garlic bread or sourdough — the essential tool for scooping the last of the cream sauce from the baking dish; no apology needed.
• Roasted broccoli with sea salt and olive oil — 15 minutes at 425°F on a sheet pan while the bake is in the oven; no extra effort required.
• Caesar salad — pairs naturally with garlic-Parmesan pasta bakes; try Cheesy Chicken Pizza Bombs – Easy 35-Minute Snack for a from-scratch version that takes this to another level.
• Steamed green beans with garlic butter — light and clean enough to let the bake remain the star of the plate.
• A dry, medium-bodied red wine — Barbera d’Asti or a lighter Pinot Noir works beautifully with cream, mushrooms, and bacon without overpowering the Parmesan.
• Sparkling water with lemon — the carbonation and acidity provide a clean palate reset between bites of the rich cream sauce.

Storage Instructions

Refrigerator

Allow the bake to cool completely before covering the dish tightly with plastic wrap or transferring portions to airtight containers. The pasta will continue absorbing the cream sauce as it sits — refrigerated leftovers will look much drier than the freshly baked dish, which reverses completely with a small amount of cream or broth added during reheating. Refrigerate for up to 4 days.

Freezer

This chicken mushroom pasta bake freezes well either fully baked or assembled-but-unbaked. For best results, freeze fully baked portions in individual freezer-safe containers for up to 3 months. To freeze assembled-but-unbaked, cover the glass dish tightly with a double layer of foil and freeze — bake from frozen at 375°F, covered, for 50–55 minutes, then uncovered for 12–15 more minutes.

Shelf Life Summary

Reheating Instructions

Oven (Best Method)

Place desired portion in an oven-safe dish. Add 3–4 tablespoons of heavy cream or chicken broth over the pasta. Cover tightly with foil and reheat at 350°F for 18–20 minutes until heated through and sauce is restored to its original consistency. Remove foil for the final 5 minutes to crisp the top layer slightly.

Microwave (Quickest Method)

Transfer a portion to a microwave-safe bowl. Add 2 tablespoons of cream or broth and cover loosely with a damp paper towel. Heat on medium power (70%) in 90-second intervals, stirring between each, until steaming throughout. Per the USDA food safety guidelines for reheating leftovers, all reheated poultry-containing dishes must reach an internal temperature of 165°F before eating.

Stovetop

Add a portion to a skillet over medium-low heat with 3 tablespoons of cream or broth. Cover and heat gently for 7–9 minutes, stirring occasionally. This method works best for 1–2 servings and produces the most even reheating without hotspots.

Nutrition Facts

Per serving (based on 6 servings):

Disclaimer: Nutrition values are estimates calculated using standard ingredient databases and will vary based on specific brands, exact portion sizes, and any ingredient substitutions made. For precise dietary tracking, enter your specific ingredients into a verified nutritional calculator. These figures are for general informational reference and are not a substitute for professional dietary guidance.

Frequently Asked Questions

1. Can I assemble this chicken mushroom pasta bake the night before?
Yes — fully assemble through Step 6, cover the baking dish tightly with foil, and refrigerate overnight. Bake directly from cold the next day, adding 8–10 minutes to the covered bake time to account for the cold start. Add the parsley garnish after baking, not before.

2. Can I use rotisserie chicken instead of raw chicken breast?
Absolutely. Shred approximately 2½ cups of rotisserie chicken breast, skip the searing step entirely, and add the shredded chicken directly to the mixing bowl with the pasta and mushrooms in Step 6. The bake time stays identical and the dish is ready even faster.

3. Why is the sauce important to build before baking rather than just mixing everything raw?
Pre-building the cream sauce ensures it’s properly reduced and the Parmesan is already emulsified before the pasta goes into the oven. A raw cream mixture poured over pasta bakes unevenly — the edges set before the center thickens, producing a dish that’s soupy in the middle and dry at the edges.

4. Can I use a different baking dish if I don’t have a round glass one?
Yes — a standard 9×13-inch baking dish works perfectly. The technique is identical; the round dish is shown for presentation purposes. A ceramic or glass baking dish is preferred over metal for this recipe, as metal pans run hotter and can cause the cream sauce to scorch at the bottom.

5. Do I need to cover the dish with foil during baking?
For the first 20 minutes, yes — the foil traps steam that heats the filling evenly and keeps the pasta from drying out before the sauce thickens. The final 10–12 minutes uncovered develops the golden top visible on the finished dish.

6. Can I skip the bacon?
Yes — the bacon adds smoky depth and textural contrast, but the dish works without it. If omitting, add ¼ teaspoon of smoked paprika directly to the cream sauce to compensate for some of the smoky flavor, and use olive oil rather than bacon fat for sautéing the mushrooms.

7. Why do the mushrooms need to be browned before baking?
Mushrooms contain significant water that releases during cooking. Added raw, they would release that water into the cream sauce during baking, thinning it and producing a watery result. The 5-minute high-heat sauté evaporates all moisture and develops golden, meaty edges that hold up through the bake.

8. Can I add more vegetables to this pasta bake?
Yes — baby spinach (wilted directly into the warm cream sauce before adding to the baking dish), blanched broccoli florets, or roasted bell pepper strips all work well. Avoid watery raw vegetables like zucchini or fresh tomatoes, which release liquid in the oven and dilute the sauce.

9. How do I know the bake is done without cutting into it?
The most reliable method is an instant-read thermometer inserted into the center of a chicken piece — it should read 165°F. Visually, the cream sauce should be actively bubbling around the edges of the dish and the top should be golden, not pale.

10. What’s the best pasta shape if I can’t find large shells?
Rigatoni and penne rigate are the best alternatives — both have ridges that hold the cream sauce and openings that trap bits of chicken and mushroom. Avoid smooth pasta like ziti or farfalle for this bake; ridged surfaces are essential for the sauce to cling properly.

11. Can I double this recipe for a larger crowd?
Yes — double all ingredients and use a large roasting pan or two standard 9×13-inch baking dishes. Build the sauce in a larger saucepan and the technique stays identical. Increase covered bake time to 25 minutes and uncovered time to 12–15 minutes; check internal temperature before serving.

Expert Chef Tips

1. Use a glass baking dish, not dark metal. Dark metal pans absorb heat aggressively and can scorch the cream sauce against the bottom before the top browns properly. Glass or light-colored ceramic heats more gently and evenly, giving you a creamy interior and a golden top simultaneously.

2. Sear the chicken in the same pan as the mushrooms, in that order. Doing the mushrooms first and the chicken second lets the chicken pick up all the savory flavor compounds left in the pan from both the bacon fat and the mushroom sauté. Every layer of cooking in the same skillet builds on the one before it.

3. Scatter Parmesan on top in two stages. Mix most of it into the cream sauce and reserve a small amount to dust across the top before baking. The surface Parmesan creates a lightly set, savory crust during the uncovered bake that you can’t achieve by mixing it all into the sauce.

4. Don’t stir the mushrooms for the first 2 minutes. Mushrooms that get moved around immediately start steaming each other. Letting them sit untouched on a hot surface for 2 full minutes allows the base to brown properly before the first stir — that initial crust is the difference between deeply flavored mushrooms and pale, soft ones.

5. Rest the bake before serving, without exception. Five minutes of resting after the dish comes out of the oven allows the cream sauce to thicken from its baking consistency to its final serving consistency. A bake scooped immediately tends to look looser in the bowl than one that’s been given time to settle.

Recipe Summary

This chicken mushroom pasta bake combines seared chicken breast pieces, browned cremini mushrooms, crispy bacon crumbles, and large shell pasta in a homemade garlic Parmesan cream sauce — all assembled in a round glass baking dish and baked at 375°F for approximately 30 minutes. It serves 6 generously, delivers 47 grams of protein per serving, and can be assembled up to 24 hours ahead and refrigerated before baking. The garlic Parmesan cream sauce is built without a roux, using reduced heavy cream and off-heat Parmesan for a silky, grainless finish.

The Pasta Bake Worth Adding to Your Permanent Lineup

Not every recipe earns a recurring spot on the weekly dinner schedule — but this chicken mushroom pasta bake genuinely does. It feeds six, reheats beautifully, works as a make-ahead dish, and delivers the kind of flavor that makes people ask for the recipe before they’ve finished their first serving. If you love pasta bakes that do more than just fill a dish, also try Garlic Parmesan Chicken Fettuccine – Easy 30-Minute and Cheesy Chicken Pizza Bombs – Easy 35-Minute Snack for two more protein-forward pasta dinners worth bookmarking. Make this one once, and you’ll understand why the glass dish never sits empty for long.

✅ Quick Tips: Read the recipe in its entirety before you start cooking. This will help you understand the ingredients, steps, and timing involved, and allow you to prepare any necessary equipment or ingredients beforehand.

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Chicken Mushroom Pasta Bake – Easy 55-Minute Dinner

Author: Anna Cooking Method: Sauteing, Simmering Cuisine: American, Italian Courses: High Protein, High Protein Dinner

Difficulty: Beginner Prep Time 20 mins Cook Time 25 mins Total Time 45 mins

Servings: 6 Calories: 560

Description

Pull a round glass baking dish of this chicken mushroom pasta bake from the oven and the entire kitchen smells like something remarkable is happening. Large shell pasta sits in a velvety garlic Parmesan cream sauce alongside seared seasoned chicken pieces, sliced cremini mushrooms, and what appears to be crispy bacon crumbles scattered throughout — all topped with a dusting of fresh herbs and grated Parmesan that's just set from the oven's heat. It's the kind of dish that a full table of people goes quiet over.

Ingredients

Scale

1/2x 1x 2x 3x

• For the Chicken
• 1 ½ lbs boneless, skinless chicken breasts, sliced into 1½-inch pieces (as shown — chunky, lightly seared before baking)
• 1 tablespoon olive oil
• 1 teaspoon smoked paprika
• ½ teaspoon garlic powder
• ½ teaspoon Italian seasoning
• ½ teaspoon kosher salt
• ¼ teaspoon black pepper
• For the Mushrooms and Bacon
• 8 oz cremini mushrooms, sliced (as shown — whole slices visible throughout the bake)
• 4 strips thick-cut bacon, cooked until crispy and crumbled (as visible throughout the dish)
• 1 tablespoon olive oil or bacon fat (for sautéing mushrooms)
• ¼ teaspoon kosher salt
• ¼ teaspoon black pepper
• For the Pasta
• 12 oz large shell pasta (conchiglie — as shown, the curved shape captures the cream sauce inside each piece)
• 1 tablespoon kosher salt (for pasta water)
• For the Garlic Parmesan Cream Sauce
• 3 tablespoons unsalted butter
• 5 cloves garlic, minced
• 2 cups heavy cream
• 1 ¼ cups freshly grated Parmesan cheese, divided
• ½ teaspoon black pepper
• ¼ teaspoon ground nutmeg
• Salt to taste
• ½ cup reserved pasta cooking water
• For Garnish
• 2 tablespoons fresh flat-leaf parsley, finely chopped (as scattered across the top of the finished dish)
• Extra freshly grated Parmesan
• Freshly cracked black pepper
• Optional Add-Ins
• ¼ teaspoon red pepper flakes (into the cream sauce for gentle heat)
• 1 cup baby spinach (wilted into the sauce just before baking)
• 1 tablespoon fresh thyme leaves (into the mushroom sauté for earthy depth)

Instructions

1. Step-by-Step Instructions
2. Step 1: Cook the Pasta
3. Bring a large pot of well-salted water to a rolling boil. Add the shell pasta and cook for 2 minutes less than the package directions — the shells will finish cooking in the oven and this early pull prevents them from becoming mushy in the bake. Before draining, scoop out ½ cup of the starchy cooking water and set it aside. Drain the shells and set aside in a large mixing bowl.
4. Step 2: Cook the Bacon
5. In the large skillet over medium heat, cook the bacon strips until fully crispy, about 6–8 minutes. Transfer to a paper towel-lined plate and let cool, then crumble into irregular pieces. Reserve the skillet with a thin layer of bacon fat — this is what you'll use to sauté the mushrooms, and the flavor it imparts is significant.
6. Step 3: Sauté the Mushrooms
7. Increase the heat under the bacon fat skillet to medium-high. Add the sliced cremini mushrooms in a single layer — don't stir them for the first 2 minutes. Once the bottom edges are golden, stir and cook for another 3–4 minutes until all the moisture has evaporated and the mushrooms are browned at the edges. Season with salt and pepper and transfer to the bowl with the pasta. Do not add moisture during this step — mushrooms need dry, high heat to brown properly rather than steam into softness.
8. Step 4: Sear the Chicken
9. Without wiping out the skillet, add 1 tablespoon of olive oil and heat over medium-high until shimmering. Toss the chicken pieces in the smoked paprika, garlic powder, Italian seasoning, salt, and pepper. Add to the skillet in a single layer and cook undisturbed for 2–3 minutes until a golden crust forms, then flip and cook 1–2 more minutes. The chicken does not need to be cooked through at this stage — it will finish in the oven. However, if pieces are thicker than 1½ inches, sear slightly longer so they reach at least 150°F before going into the bake; they'll hit the USDA-required 165°F safe internal temperature for poultry during the oven bake. Transfer the seared chicken to the bowl with the pasta and mushrooms.
10. Step 5: Build the Garlic Parmesan Cream Sauce
11. In a medium saucepan over medium heat, melt the butter. Add the minced garlic and cook, stirring constantly, for 60–90 seconds until fragrant and lightly golden at the edges. Pour in the heavy cream and increase the heat to medium-high. Bring to a gentle simmer and let it cook for 5–6 minutes, stirring frequently, until reduced by about 20% and noticeably thicker. Add black pepper and nutmeg. Remove the saucepan from the heat and stir in 1 cup of the Parmesan in thirds, allowing each addition to melt fully before adding the next. Tip: Off-heat Parmesan addition is non-negotiable — adding cheese to boiling cream causes the proteins to seize and the sauce to turn grainy.
12. Step 6: Combine Everything and Transfer to the Baking Dish
13. Preheat your oven to 375°F. Pour the finished Parmesan cream sauce over the pasta, mushrooms, and chicken in the large mixing bowl. Add the crumbled bacon and toss everything together until the pasta shells are evenly coated and the components are well distributed. If the mixture looks thick, add 2–3 tablespoons of the reserved pasta water and toss again. Transfer the entire mixture to the round glass baking dish, spreading it into an even layer. Tip: Don't pack the dish too tightly — you want some sauce visible around the edges so it stays creamy during baking rather than drying out.
14. Step 7: Top and Bake
15. Scatter the remaining ¼ cup of Parmesan across the top of the dish. Cover tightly with aluminum foil and bake at 375°F for 20 minutes. Remove the foil and bake for an additional 10–12 minutes uncovered until the top is lightly golden and the sauce is actively bubbling around the edges. Use an instant-read thermometer to verify the chicken pieces have reached 165°F before serving. Rest for 5 minutes, scatter fresh parsley across the top, and serve directly from the baking dish.

Nutrition Facts

Servings 6

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Amount Per Serving

Calories 560kcal

% Daily Value *

Total Fat 25g39%

Saturated Fat 14g70%

Total Carbohydrate 56.5g19%

Sugars 3g

Protein 46g92%

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Vitamin A 302 IU

Vitamin C 12 mg

Calcium 135 mg

Iron 7 mg

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

Keywords: delicious, homemade, high protein, healthy