Best Easy Creamy Mushroom and Chicken Bake Recipe

Creamy mushroom and chicken bake features tender chicken smothered in a rich mushroom cream sauce. This high protein, family-friendly chicken casserole is elegant comfort food that's easy enough for weeknights.

Cook 55 min Difficulty NORMAL 375 kcal
#high protein #diabetic friendly #mediterranean
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Ingredients
Main ingredients
  • boneless skinless chicken breasts 24 oz
  • cremini mushrooms 16 oz
  • yellow onion 1 cup
  • garlic cloves 3 pieces
  • unsalted butter 3 tbsp
  • heavy cream 1 cup
  • shredded mozzarella cheese 1 cup
Seasonings/Sauce
  • salt 1 tsp
  • black pepper 0.5 tsp
  • dried thyme 1 tsp
  • fresh parsley 0.25 cup
Nutrition summary
Carbohydrates 11 g 12%
Protein 33 g 35%
Fat 20 g 53%
Serving size 320g
Cooking steps
  1. 1

    Preheat oven to 400°F and lightly grease a large baking dish.

  2. 2

    Heat 2 tbsp butter in a skillet over medium-high heat. Sauté sliced mushrooms and onions for 6–7 minutes until softened and moisture evaporates.

  3. 3

    Add minced garlic and dried thyme; cook for 1 minute, stirring constantly, then transfer mixture to a bowl.

  4. 4

    Add remaining butter to the skillet. Season chicken breasts with salt and pepper, then sear chicken on both sides for 2–3 minutes until lightly golden.

  5. 5

    Arrange seared chicken in baking dish. Top with sautéed mushroom mixture, pour over heavy cream, and sprinkle mozzarella cheese evenly.

  6. 6

    Bake uncovered for 22–26 minutes until chicken reaches 165°F internal and cheese is bubbling. Let rest for 5 minutes, garnish with chopped fresh parsley, and serve hot.

Personalized Q&A
Q. What's the key ingredient in this recipe?
The star ingredient is boneless, skinless chicken breasts, providing the casserole’s main protein and tender bite. Cremini mushrooms add earthy flavor and moisture, making them essential for the sauce’s depth and texture.
Q. How do I ensure my chicken stays juicy and tender?
Searing the chicken briefly over medium-high heat before baking seals in moisture and starts building flavor. Then, baking with cream and mushrooms allows gentle, even cooking—preventing dryness. Aim for 165°F internal temperature and a brief rest after baking.
Q. What helps achieve a creamy, rich sauce without splitting?
Combining heavy cream with sautéed mushrooms, onions, and melted mozzarella cheese creates a smooth, luscious sauce. Avoid boiling the cream—keep heat moderate and bake uncovered. Letting the casserole rest for a few minutes keeps the sauce thick and prevents separation.
Q. How many calories and what's the protein-to-carb ratio per serving?
Each serving contains about 375 kcal, 33g protein, and 11g carbohydrates. The protein makes up 35% of calories, carbs 12%, and fat 53%, making this recipe notably high protein and relatively low in carbohydrates.
Q. Which herbs and seasonings give this dish its signature flavor?
Dried thyme and fresh parsley are the key herbal notes, complemented by garlic, onion, salt, and pepper. Thyme infuses the mushroom base with warmth, while parsley brightens the finished casserole. Don’t skip these for authentic flavor.
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