Italian Chicken Casserole

Posted on December 4, 2025

Modified: December 4, 2025

By Reda
A freshly baked Italian Chicken Casserole in a white dish, topped with melted mozzarella cheese and fresh herbs.

There’s a certain magic that happens when a casserole is in the oven. For me, the aroma of this Hearty Italian Chicken Casserole instantly transports me back to my childhood kitchen, where the scent of simmering tomatoes, garlic, and herbs meant a cozy family dinner was on its way. This dish is more than just a meal; it’s a warm hug on a plate. The tender chicken, the perfectly cooked penne, and that rich, creamy tomato sauce all bubbling under a blanket of melted cheese is my definition of comfort. It’s a reliable favorite, much like my classic beef and potato casserole, that I find myself returning to again and again.

Why This Dish is a Go-To in My Kitchen

What I adore most about this recipe is how it delivers such a deeply flavorful, satisfying meal without keeping me tied to the stove for hours. With just 20 minutes of prep time, I can have everything ready for the oven. The 50-minute cook time is completely hands-off, giving me a chance to relax or set the table. It uses simple, wholesome ingredients like chicken, spinach, and crushed tomatoes, but brings them together in a way that feels special enough for a Sunday dinner.

Let’s Talk About the Ingredients

The secret to the rich sauce is using fire-roasted crushed tomatoes; they offer a subtle smokiness you can’t get from regular ones. I also insist on fresh spinach, which wilts beautifully into the sauce, adding nutrients without overpowering the dish. It’s a versatile green, much like in my cozy chicken and wild rice casserole.

A freshly baked Italian Chicken Casserole in a white dish, topped with melted mozzarella cheese and fresh herbs.
Reda

Hearty Italian Chicken Casserole

A comforting and cheesy baked pasta dish with tender chicken and penne, all tossed in a savory tomato cream sauce with Italian herbs. Perfect for a satisfying weeknight family dinner.
Prep Time 20 minutes
Cook Time 50 minutes
Total Time 1 hour 10 minutes
Servings: 6 servings
Course: Main Course
Cuisine: American, Italian
Calories: 695

Ingredients
  

For the Casserole
  • 12 oz penne pasta
  • 1 tbsp olive oil
  • 1.5 lbs boneless, skinless chicken breasts cut into 1-inch cubes
  • 1 medium yellow onion chopped
  • 4 cloves garlic minced
  • 1 tsp dried oregano
  • 1 tsp dried basil
  • 1/2 tsp red pepper flakes optional
  • 1 can (28 oz) crushed tomatoes
  • 1/2 cup heavy cream
  • 1/2 cup chicken broth
  • 5 oz fresh spinach
  • 1 tsp salt or to taste
  • 1/2 tsp black pepper or to taste
For the Topping
  • 2 cups shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • 2 tbsp fresh parsley chopped, for garnish

Equipment

  • 9x13-inch baking dish
  • Large skillet or Dutch oven
  • Large Pot
  • Colander

Method
 

  1. Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.
  2. Cook the penne pasta in a large pot of salted water according to package directions until al dente. Drain well and set aside.
  3. While the pasta is cooking, heat the olive oil in a large skillet or Dutch oven over medium-high heat. Season the chicken cubes with salt and pepper. Add the chicken to the skillet and cook until browned on all sides and cooked through, about 5-7 minutes. Remove the chicken from the skillet and set it aside.
  4. To the same skillet, add the chopped onion and cook until softened, about 3-4 minutes. Add the minced garlic, dried oregano, dried basil, and red pepper flakes (if using). Cook for 1 minute more until fragrant.
  5. Pour in the crushed tomatoes and chicken broth. Bring to a simmer, then reduce the heat to low. Stir in the heavy cream, 1 tsp salt, and 1/2 tsp black pepper. Let the sauce simmer gently for 5 minutes to allow the flavors to meld.
  6. Turn off the heat. Stir the fresh spinach into the hot sauce until it wilts completely. Return the cooked chicken to the skillet along with the drained penne pasta. Stir everything together until the chicken and pasta are well coated in the sauce.
  7. Transfer the chicken and pasta mixture to the prepared 9x13 inch baking dish, spreading it into an even layer.
  8. Sprinkle the shredded mozzarella and grated Parmesan cheese evenly over the top. Bake, uncovered, for 20-25 minutes, or until the cheese is melted, bubbly, and lightly golden brown on top.
  9. Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This allows it to set up slightly. Garnish with fresh chopped parsley before serving.

Notes

Pasta Choice: Rigatoni, ziti, or cavatappi work well in this recipe too.
Make-Ahead: You can assemble the casserole (without baking) up to a day in advance. Cover and refrigerate. You may need to add 10-15 minutes to the baking time if baking from cold.
Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days.
Serving Suggestion: This Italian Chicken Casserole pairs wonderfully with a simple green salad and a side of garlic bread.

Bringing It All Together in My Kitchen

My process for this dish is all about building layers of flavor. I start by browning the chicken, which creates a delicious foundation. Then, in the same pan, I sauté the onion and garlic until they’re fragrant. The real magic happens when I stir in the herbs, tomatoes, chicken broth, and cream to create a luscious sauce. From there, it’s just a matter of combining everything with the cooked pasta and fresh spinach. It’s a method that creates a wonderfully creamy result, reminiscent of my favorite chicken tetrazzini.

A Few Extra Tips from My Kitchen

  • Don’t Overcook the Pasta: Cook your penne a minute or two less than the package directions. It will finish cooking in the oven and absorb the sauce without getting mushy.
  • Freshly Grated Cheese: Always grate your own mozzarella and Parmesan. Pre-shredded cheeses have anti-caking agents that prevent them from melting as smoothly.
  • Let It Rest: After baking, let the casserole sit for at least 10 minutes before serving. This allows it to set, making it much easier to serve.

How I Serve and Store This Dish

I love to serve this casserole family-style, straight from the baking dish, with a simple green salad and some crusty garlic bread for soaking up every last bit of the delicious sauce. Leftovers are one of my favorite parts! I store them in an airtight container in the refrigerator for up to four days. It reheats beautifully in the microwave or oven, making it perfect for a quick lunch, just like my go-to Chicken Parmesan Casserole.

Frequently Asked Questions

Can I use a different type of pasta?

Of course! While I love penne, this casserole works wonderfully with other sturdy pasta shapes like rigatoni, ziti, or rotini. Just choose something that has ridges or holes to catch all of that creamy, delicious tomato sauce.

Is it possible to make this casserole ahead of time?

Yes, this is a great make-ahead dish. You can assemble the entire casserole without baking it, then cover it tightly and refrigerate for up to 24 hours. When you’re ready to eat, just add about 10-15 minutes to the baking time.

Can I add other vegetables to this dish?

Absolutely! This recipe is very forgiving. Sautéed mushrooms, zucchini, or bell peppers make fantastic additions. I recommend cooking them along with the onion and garlic until they are tender before you proceed with building the sauce. It’s a great way to use up veggies.

How can I make this dish spicier?

If you enjoy a bit more heat like I do, feel free to increase the amount of red pepper flakes to your liking. For an extra kick, you could also add a pinch of cayenne pepper along with the dried basil and oregano.

This Hearty Italian Chicken Casserole holds a special place in my recipe book, and I truly hope it brings as much comfort and joy to your table as it does to mine. If you give it a try, I would absolutely love to hear what you think!

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