Cheesy, comforting, and packed with classic Italian flavors, this Chicken Parmesan Casserole recipe is an easy dinner that the whole family will love.

Tender chicken, pasta, marinara sauce, and plenty of melted mozzarella and Parmesan cheese come together in one baking dish for a meal that’s rich, satisfying, and perfect for busy weeknights. It has all the flavors of traditional chicken Parmesan without the extra work of breading and frying.

Chicken Parmesan Casserole combines cooked chicken, pasta, marinara sauce, Italian herbs, and two kinds of cheese into a creamy, bubbly casserole that’s easy to prepare. The marinara keeps everything flavorful, while the melted cheese creates a golden topping that’s hard to resist. It’s naturally high in protein, easy to customize with vegetables, and perfect for meal prep because the leftovers reheat beautifully.

I make Chicken Parmesan Casserole whenever I want a comforting dinner that’s simple enough for a weeknight but still feels special. Rotisserie chicken makes the prep even faster, and I sometimes add spinach or mushrooms when I want to sneak in a few extra vegetables. It’s one of those recipes that everyone goes back for seconds.

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Why You’ll Love This Recipe

• Ready in about 45 minutes.
• Made in one baking dish for easy cleanup.
• Full of classic chicken Parmesan flavors.
• Naturally high in protein.
• Perfect for meal prep and leftovers.
• Family-friendly and great for busy weeknights.
• Easy to customize with your favorite vegetables.
• Beginner-friendly with simple ingredients.

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Ingredients You’ll Need

For the Casserole

• 2 cups cooked chicken, shredded or diced – Chicken makes the casserole hearty and satisfying. Rotisserie chicken or leftover baked chicken both work well.
• 8 ounces penne or rotini pasta – Short pasta holds the sauce well and stays tender after baking.
• 3 cups marinara sauce – Marinara sauce adds rich tomato flavor and keeps the casserole moist. Use your favorite store-bought or homemade sauce.
• 2 cups shredded mozzarella cheese, divided – Mozzarella melts into a gooey, cheesy topping that gives the casserole its classic finish.
• 1 cup grated Parmesan cheese, divided – Parmesan adds bold, savory flavor and creates a beautifully golden top.
• 1 teaspoon Italian seasoning – Italian seasoning adds a blend of herbs that complements the tomato sauce.
• 2 garlic cloves, minced – Fresh garlic adds extra depth and flavor.
• ½ teaspoon onion powder – Onion powder enhances the savory flavors without adding texture.
• ½ teaspoon salt – Salt balances the flavors. Adjust depending on the saltiness of your marinara.
• ¼ teaspoon black pepper – Black pepper adds a gentle kick.
• 2 tablespoons chopped fresh basil or parsley – Fresh herbs brighten the finished casserole.

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Kitchen Tools You’ll Need

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How to Make Chicken Parmesan Casserole

Step 1: Preheat the oven

Preheat your oven to 375°F (190°C).

Lightly grease a 9×13-inch baking dish.

Step 2: Cook the pasta

Cook the pasta according to the package directions until al dente.

Drain well.

Step 3: Mix the casserole

In a large bowl, combine the cooked pasta, chicken, marinara sauce, garlic, Italian seasoning, onion powder, salt, black pepper, 1½ cups mozzarella, and ½ cup Parmesan cheese.

Stir until everything is evenly coated.

Step 4: Assemble

Transfer the mixture to the prepared baking dish.

Sprinkle the remaining mozzarella and Parmesan cheese evenly over the top.

Step 5: Bake

Cover loosely with aluminum foil and bake for 20 minutes.

Remove the foil and continue baking for 10 to 15 minutes, or until the cheese is melted, bubbly, and lightly golden.

Step 6: Serve

Let the casserole rest for 5 to 10 minutes before serving.

Garnish with chopped basil or parsley and enjoy while warm.

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Recipe Variations

Creamy Chicken Parmesan Casserole

Stir ½ cup ricotta cheese into the casserole mixture for an extra creamy texture.

Chicken Parmesan Broccoli Casserole

Add 2 cups steamed broccoli florets for extra vegetables and color.

Spicy Chicken Parmesan Casserole

Mix in crushed red pepper flakes or a little hot Italian seasoning for extra heat.

Low-Carb Chicken Parmesan Casserole

Replace the pasta with cauliflower florets or zucchini noodles for a lower-carb version.

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What to Serve With Chicken Parmesan Casserole

• Garlic bread
• Caesar salad
• Roasted broccoli
• Steamed green beans
• Garlic butter asparagus
• Roasted zucchini
• Caprese salad
• Sautéed spinach
• Dinner rolls
• Mixed green salad

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How to Store and Reheat

Refrigerator

Store leftover Chicken Parmesan Casserole in an airtight container in the refrigerator for up to 4 days.

Freezer

Freeze the baked casserole in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before reheating.

Reheating

Reheat individual portions in the microwave, or warm the casserole in a 350°F (175°C) oven for about 20 minutes, covered with foil until heated through.

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Common Mistakes to Avoid

Overcooking the pasta

Cook the pasta only until al dente since it will continue cooking while the casserole bakes.

Using watery marinara sauce

A thin sauce can make the casserole watery. Use a thick marinara for the best texture.

Adding all the cheese inside

Save some mozzarella and Parmesan for the top so you get a bubbly, golden cheese layer.

Skipping the resting time

Allow the casserole to rest for 5 to 10 minutes before serving. This helps it set and makes serving much easier.

Overbaking the casserole

Bake only until the cheese is melted and lightly browned. Overbaking can dry out the chicken.

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Frequently Asked Questions

Can I use rotisserie chicken?

Yes. Rotisserie chicken is one of the easiest ways to make Chicken Parmesan Casserole quickly.

Can I make Chicken Parmesan Casserole ahead of time?

Absolutely. Assemble the casserole, cover it tightly, and refrigerate it for up to 24 hours before baking.

Can I freeze Chicken Parmesan Casserole?

Yes. Bake it first, let it cool completely, then freeze it for up to 3 months. Thaw overnight before reheating.

What pasta works best?

Penne, rotini, rigatoni, and ziti all hold the sauce well and are great choices for this casserole.

Can I add vegetables?

Yes. Spinach, mushrooms, broccoli, zucchini, bell peppers, and cauliflower all work well in this recipe.