Creamy Chicken Mushroom Pasta Bake

Delicious Chicken Mushroom Pasta Casserole

4.39 from 39 votes

Creamy Chicken Mushroom Pasta Casserole: Your Ultimate Weeknight Comfort Food

By: Julia Pacheco

Indulge in the heartwarming embrace of this creamy, savory Chicken Mushroom Pasta Casserole. This recipe is a true testament to comfort food, combining tender, succulent chicken pieces, earthy mushrooms, and al dente pasta, all enveloped in a rich, velvety sauce. It’s designed for ease and maximum flavor, making it the perfect choice for a satisfying family dinner, a cozy weeknight meal, or a impressive potluck contribution. Prepare to add this delightful casserole to your regular rotation!

Prep: 5 mins

Cook: 50 mins

Total: 55 mins

Servings: 4 servings

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Why You’ll Love This Creamy Chicken Mushroom Pasta Casserole

This isn’t just another pasta dish; it’s a culinary hug in a casserole dish! Here’s why this Chicken Mushroom Pasta Casserole will quickly become a cherished recipe in your household:

Effortless Preparation: With just 5 minutes of prep time, this recipe is incredibly easy to assemble. It’s truly a “dump and go” style casserole that minimizes your time in the kitchen.
Rich and Creamy Texture: The combination of cream of mushroom soup, milk, and sour cream creates an irresistibly smooth and luscious sauce that coats every piece of chicken and pasta.
Hearty and Filling: Packed with protein from chicken and carbohydrates from pasta, this casserole is a complete meal that will satisfy even the hungriest appetites.
Flavorful Ingredients: Earthy mushrooms complement the tender chicken beautifully, while a blend of aromatic spices ensures a well-rounded and deeply savory taste.
Family-Friendly: Its mild yet delicious flavors appeal to both adults and children, making it a perfect meal for family dinners or gatherings.
One-Dish Wonder: Most of the cooking happens in one casserole dish in the oven, meaning less cleanup and more time to enjoy your meal.

Ingredients You’ll Need

Crafting this delicious casserole begins with a selection of simple, readily available ingredients. Freshness and quality can make a difference, but pantry staples are perfectly acceptable for a quick and easy meal. Here’s what you’ll need to gather:

1 lb raw chicken breast, cubed. Boneless, skinless chicken breast is ideal for quick cooking and tender results. Cubing it ensures even cooking and easier serving. You can also use cooked rotisserie chicken for an even faster prep time.
1 ¾ cup uncooked penne pasta. Penne is excellent because its tubular shape holds the creamy sauce beautifully. Feel free to use other sturdy pasta shapes like ziti, rigatoni, or even elbow macaroni.
10 oz can cream of mushroom soup. This is the base of our incredibly creamy sauce, adding depth and a classic comfort food flavor.
½ cup milk. Any type of milk (whole, 2%, or skim) will work, contributing to the casserole’s creamy consistency. For an extra rich flavor, you can use half-and-half.
¾ cup chicken broth. Adds savory liquid and enhances the overall chicken flavor of the dish. Low-sodium broth is recommended to control the salt content.
¼ cup water. Helps to thin out the sauce to the perfect consistency for baking.
8 oz white mushrooms, sliced. Fresh white or cremini mushrooms lend an essential earthy flavor and satisfying texture. Ensure they are wiped clean, not washed, to prevent them from becoming soggy.
1 tsp dried oregano. A classic herb that brings a warm, aromatic note to the dish.
1 tsp salt. Essential for seasoning and bringing out the flavors of all the ingredients. Adjust to your taste.
½ tsp pepper. Freshly ground black pepper adds a subtle kick.
1 tsp onion powder. Provides a foundational savory onion flavor without the texture of fresh onion.
⅓ cup sour cream. Stirred in at the end, sour cream adds a delightful tang and extra creaminess, preventing the sauce from becoming too dense.
1 cup mozzarella cheese. Shredded mozzarella melts beautifully, creating a golden, gooey topping. Other cheeses like cheddar or a blend can also be used.

Step-by-Step Instructions

Follow these simple steps to create a mouthwatering Chicken Mushroom Pasta Casserole that everyone will adore. This recipe is designed for minimal effort and maximum flavor, perfect for a busy schedule.

Preheat your oven to 425 degrees F (220 degrees C). This ensures the oven is at the correct temperature for even cooking and a beautifully golden finish.
In a large mixing bowl, combine the cream of mushroom soup, milk, chicken broth, water, dried oregano, salt, pepper, and onion powder. Whisk all these ingredients together thoroughly until the mixture is smooth and well combined. This forms the creamy base of your casserole. Next, add the cubed raw chicken breast, uncooked penne pasta, and sliced mushrooms to the bowl. Stir everything gently until all the chicken, pasta, and mushrooms are evenly coated in the rich, seasoned sauce.
Lightly spray a large casserole dish (a 9×13 inch baking dish works perfectly) with a non-stick cooking spray to prevent sticking. Carefully transfer the entire chicken and pasta mixture into the prepared baking dish, spreading it out evenly. Cover the dish tightly with aluminum foil. Bake in the preheated oven for 40 minutes. The foil helps to steam the pasta and chicken, ensuring they cook through and absorb the flavors of the sauce.
After 40 minutes, carefully remove the casserole from the oven and remove the foil. The pasta should be mostly tender and the chicken cooked. Stir in the sour cream, mixing it gently into the hot pasta mixture until fully incorporated. This adds a lovely tangy note and boosts the creaminess. Finally, sprinkle the mozzarella cheese evenly over the top of the casserole. Return the uncovered dish to the oven and bake for an additional 10 minutes, or until the cheese is melted, bubbly, and lightly golden brown.

Tips for the Best Chicken Mushroom Pasta Casserole

To ensure your casserole turns out perfectly every time, keep these helpful tips in mind:

Don’t Pre-Cook Pasta: The beauty of this recipe is that the pasta cooks directly in the sauce, absorbing all those delicious flavors. No need for an extra pot!
Whisk Thoroughly: Make sure the soup mixture is well whisked to avoid any lumps and ensure a consistently creamy sauce.
Even Spread: Distribute the chicken and pasta evenly in the casserole dish so everything cooks uniformly.
Let it Rest: After baking, let the casserole rest for 5-10 minutes before serving. This allows the sauce to set and makes it easier to serve.
Adjust Seasoning: Taste the sauce mixture before adding the chicken and pasta, and adjust salt and pepper if needed. Remember, the flavors will intensify during baking.

Delicious Variations and Customizations

This Chicken Mushroom Pasta Casserole is wonderfully versatile! Feel free to experiment with these ideas to tailor it to your taste:

Vegetable Boost: Add a cup of frozen peas, chopped spinach, diced bell peppers, or steamed broccoli florets to the mixture during the last 10 minutes of baking (when you add cheese) for extra nutrients and color.
Cheese Lovers: Swap mozzarella for a blend of cheddar and Monterey Jack, or sprinkle some grated Parmesan over the top before serving for an extra layer of flavor.
Spice it Up: A pinch of red pepper flakes added to the sauce mixture will give this casserole a pleasant kick.
Herb Alternatives: Instead of or in addition to oregano, try dried thyme, a dash of Italian seasoning, or fresh parsley stirred in at the end.
Different Proteins: Cooked turkey breast or even shredded rotisserie chicken can be used in place of raw chicken breast for a different flavor profile or to shorten the cooking time slightly. Adjust liquid if using pre-cooked chicken as it won’t release as much moisture.
Gluten-Free Option: Use gluten-free pasta and ensure your cream of mushroom soup and chicken broth are certified gluten-free.
Extra Creaminess: For an even richer sauce, consider adding a tablespoon of cream cheese or a splash of heavy cream with the sour cream.

Serving Suggestions

This hearty casserole is a meal in itself, but it pairs wonderfully with a few simple sides to complete your dinner:

A crisp green salad with a light vinaigrette to balance the richness.
Warm garlic bread or crusty artisan bread for soaking up every last bit of creamy sauce.
Steamed green beans, asparagus, or a side of roasted root vegetables.

Storage and Reheating

Leftovers of this casserole are just as delicious, if not more so, the next day!

Storage: Store any leftover casserole in an airtight container in the refrigerator for up to 3-4 days.
Reheating: To reheat, simply place individual portions in the microwave until heated through, or cover and bake in the oven at 350°F (175°C) until warm, adding a splash of milk or broth if the sauce seems too thick.
Freezing: This casserole freezes well! Once cooled completely, transfer portions to freezer-safe containers and freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.

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Nutrition Information (per serving)

Calories: 514kcal
Carbohydrates: 46g
Protein: 44g
Fat: 17g
Saturated Fat: 8g
Polyunsaturated Fat: 1g
Monounsaturated Fat: 5g
Trans Fat: 0.01g
Cholesterol: 114mg
Sodium: 1579mg
Potassium: 913mg
Fiber: 3g
Sugar: 5g
Vitamin A: 403IU
Vitamin C: 3mg
Calcium: 232mg
Iron: 2mg

Nutrition information is automatically calculated and should only be used as an approximation. Actual values may vary based on ingredients used and preparation methods.

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