Parmesan Chicken Casserole
This Parmesan Chicken Casserole is the perfect comfort-food dinner when you want something creamy, cheesy, and satisfying without spending hours in the kitchen. Tender chicken is combined with a rich tomato sauce, Italian seasoning, and plenty of Parmesan and mozzarella, then baked until bubbling and golden.
It’s an easy family meal that pairs beautifully with pasta, salad, or crusty garlic bread.
Ingredients
For the Chicken
- 2 pounds boneless, skinless chicken breasts
- 1 teaspoon Italian seasoning
- 1 teaspoon garlic powder
- ½ teaspoon paprika
- ½ teaspoon salt
- ¼ teaspoon black pepper
- 2 tablespoons olive oil
For the Casserole
- 2 cups marinara sauce
- ½ cup grated Parmesan cheese
- 1½ cups shredded mozzarella cheese
- ½ cup Italian-style breadcrumbs
- 2 cloves garlic, minced
- 1 teaspoon dried Italian seasoning
- 2 tablespoons chopped fresh parsley
- 2 tablespoons melted butter
Instructions
1. Prepare the Chicken
Preheat your oven to 375°F (190°C).
If the chicken breasts are very thick, carefully slice them horizontally into thinner cutlets. This helps them cook more evenly.
Pat the chicken dry with paper towels.
Season both sides with Italian seasoning, garlic powder, paprika, salt, and black pepper.
2. Brown the Chicken
Heat the olive oil in a large oven-safe skillet over medium-high heat.
Add the chicken and sear for about 2–3 minutes per side, just until lightly golden.
The chicken doesn’t need to be completely cooked at this point because it will finish cooking in the oven.
Transfer the chicken to a plate.
3. Prepare the Casserole Dish
Spread about ½ cup of marinara sauce across the bottom of a lightly greased 9×13-inch baking dish.
Arrange the chicken pieces over the sauce.
Pour the remaining marinara sauce over the chicken, making sure each piece is coated.
4. Add the Cheese
Sprinkle the Parmesan cheese evenly over the chicken.
Top with shredded mozzarella.
The combination of Parmesan and mozzarella creates a deliciously cheesy topping that becomes golden and bubbly as it bakes.
5. Make the Crispy Topping
In a small bowl, combine the breadcrumbs, minced garlic, Italian seasoning, and melted butter.
Mix until the breadcrumbs are evenly coated.
Sprinkle the mixture over the cheese layer.
6. Bake
Place the casserole in the preheated oven.
Bake for approximately 25–30 minutes, or until the chicken reaches an internal temperature of 165°F (74°C) and the cheese is melted and bubbling.
For an extra-golden topping, place the casserole under the broiler for 1–2 minutes at the end.
Watch it carefully so the cheese and breadcrumbs don’t burn.
7. Rest and Garnish
Remove the casserole from the oven and let it rest for about 5 minutes.
Sprinkle with fresh parsley before serving.
Tips for the Best Parmesan Chicken Casserole
Don’t Skip the Searing
Quickly browning the chicken before baking adds extra flavor and helps create a more delicious finished dish.
Use Freshly Grated Parmesan
Fresh Parmesan melts and browns beautifully and provides a much richer flavor than many pre-grated varieties.
Don’t Overcook the Chicken
Chicken breast can become dry when overcooked. Use an instant-read thermometer and remove it once the thickest part reaches 165°F (74°C).
Add the Breadcrumbs Last
Keeping the breadcrumb mixture on top helps it stay crispy while the sauce and cheese remain creamy underneath.
Easy Variations
🍄 Mushroom Parmesan Chicken
Add sautéed mushrooms beneath the chicken for an earthy flavor.
🌿 Spinach Parmesan Chicken
Add a layer of fresh spinach underneath the chicken. It will wilt beautifully while the casserole bakes.
🌶️ Spicy Parmesan Chicken
Add red pepper flakes to the marinara sauce or breadcrumb mixture for a little heat.
🥦 Vegetable Parmesan Casserole
Add broccoli, zucchini, or bell peppers for extra vegetables.
🧀 Extra Cheesy
Add a little provolone or fontina along with the mozzarella for an even richer cheese topping.
What to Serve With It
This casserole is delicious served alongside:
- Spaghetti
- Garlic bread
- Buttered noodles
- Roasted vegetables
- Caesar salad
- Steamed broccoli
- Green beans
- Simple garden salad
Spoon some of the extra tomato sauce over pasta for an easy complete dinner.
Storage and Reheating
Store leftovers in an airtight container in the refrigerator for up to 3–4 days.
To reheat, cover loosely with foil and warm in a 350°F (175°C) oven until heated through.
Individual portions can also be reheated in the microwave, although the breadcrumb topping will be softer.
Final Thoughts
This Parmesan Chicken Casserole combines everything you want in a cozy dinner: juicy chicken, flavorful marinara sauce, melted mozzarella, savory Parmesan, and a crispy golden topping.
It’s simple enough for a busy weeknight but comforting enough for a Sunday family dinner.
Cheesy, saucy, crispy, and packed with Italian-inspired flavor—this casserole is sure to become a family favorite! 🍗🧀🍅