If you’re on the hunt for a comforting, rich, and flavor-packed meal that feels like a warm hug on a plate, let me introduce you to the Baked Tuscan Chicken Casserole Recipe. This dish marries succulent chicken breasts with a luscious creamy sauce studded with sun-dried tomatoes and fresh spinach, all topped with ooey-gooey mozzarella and Parmesan cheeses. It’s a deliciously easy way to bring a touch of Italy into your kitchen without any fuss, making it a perfect weeknight dinner or a special meal for friends and family.

Ingredients You’ll Need
These ingredients are simple yet thoughtfully chosen to build layers of flavor, texture, and vibrant color that make the Baked Tuscan Chicken Casserole Recipe truly irresistible. Each component plays a vital role—from the creamy cheese blend to the aromatic herbs and hearty spinach.
- 4 boneless, skinless chicken breasts: The tender protein base that soaks up all the delicious sauce.
- 1 tablespoon olive oil: Provides a perfect sear and enhances richness with Mediterranean flair.
- 1 teaspoon garlic powder: Adds warm, savory depth without the fuss of peeling fresh garlic.
- 1 teaspoon onion powder: Brings subtle sweetness and complexity to the seasoning.
- 1 teaspoon dried oregano: Infuses that classic Tuscan herbal note that ties everything together.
- 1/2 teaspoon salt: Balances and elevates all the natural flavors.
- 1/4 teaspoon black pepper: Adds just a touch of heat to brighten the dish.
- 1 cup sun-dried tomatoes, chopped: Their intense, sweet-tart flavor adds vibrant color and a burst of umami.
- 2 cups fresh spinach, chopped: Contributes a fresh, leafy texture and lovely green hue.
- 1 cup heavy cream: Creates a rich, velvety sauce that clings to every bite.
- 1/2 cup grated Parmesan cheese: Brings a salty, nutty sharpness for depth.
- 1/2 cup shredded mozzarella cheese: Melts beautifully for that irresistible golden, bubbly topping.
- 1/4 cup fresh basil, chopped: Finishing herb that adds brightness and a fragrant aroma.
How to Make Baked Tuscan Chicken Casserole Recipe
Step 1: Preheat and Season
Start by preheating your oven to 375°F (190°C). While that warms up, take your chicken breasts and season them evenly with garlic powder, onion powder, dried oregano, salt, and black pepper. This simple blend ensures every bite bursts with flavor.
Step 2: Sear the Chicken
Heat olive oil in a large skillet over medium heat. Carefully place the seasoned chicken breasts in the pan, searing each side for 3 to 4 minutes until they develop a beautiful golden crust. This step locks in juices and adds an irresistible texture before baking. Once browned, set the chicken aside while you prepare the sauce right in the same skillet.
Step 3: Prepare the Creamy Tuscan Sauce
In the skillet, add chopped sun-dried tomatoes and fresh spinach. Cook for 2 to 3 minutes until the spinach wilts gently. Then, pour in the heavy cream and sprinkle in grated Parmesan cheese. Stir continuously until this luscious sauce thickens slightly, becoming smooth, creamy, and perfectly infused with the concentrated tomato flavors.
Step 4: Assemble the Casserole
Place those seared chicken breasts in a baking dish, arranging them comfortably so the sauce can work its magic. Pour your creamy tomato-spinach mixture evenly over the chicken, covering every nook and cranny with that savory richness. Finish by scattering shredded mozzarella cheese on top for that signature melty, golden finish.
Step 5: Bake to Perfection
Pop the baking dish into your preheated oven and bake for 25 to 30 minutes. During this time, the casserole will come together beautifully — the chicken cooks through, the sauce thickens further, and the cheese melts into a bubbly, golden crown. Once done, remove it and let it rest briefly before serving.
How to Serve Baked Tuscan Chicken Casserole Recipe

Garnishes
Sprinkle freshly chopped basil over your casserole right before serving to add a splash of vibrant green color and a burst of fresh herbal aroma. Not only does this make the dish prettier, but it also enhances the overall flavor profile.
Side Dishes
This casserole pairs wonderfully with simple sides that soak up the creamy sauce. Consider serving alongside garlic parmesan mashed potatoes, creamy polenta, or a crusty loaf of artisan bread. A crisp green salad with a light vinaigrette also balances the richness beautifully.
Creative Ways to Present
For an impressive presentation, serve individual portions in cute ramekins, topped with a basil leaf. If you want to make it a shared experience, bring the whole casserole to the table in the baking dish—inviting everyone to dig in family-style adds warmth and casual charm.
Make Ahead and Storage
Storing Leftovers
Once cooled, store any leftover Baked Tuscan Chicken Casserole Recipe in an airtight container in the refrigerator. It will keep well for up to 3 days, making it perfect for next-day lunches or dinners.
Freezing
You can freeze the casserole either before or after baking. If freezing before baking, cover tightly with foil and plastic wrap, then bake it straight from frozen by adding extra cooking time. If freezing after baking, cool completely and transfer to a freezer-safe container to keep for up to 2 months.
Reheating
Reheat leftovers gently in the oven at 350°F until warmed through or in the microwave for faster results. Cover loosely to prevent the chicken from drying out and ensure the sauce stays creamy and delicious.
FAQs
Can I use chicken thighs instead of breasts?
Absolutely! Chicken thighs offer a juicier and more flavorful alternative. Just adjust the cooking time slightly, as thighs may need a few extra minutes to cook through.
Are sun-dried tomatoes necessary?
They really add a unique, tangy sweetness that balances the creaminess of the sauce. However, if you don’t have them on hand, chopped cherry tomatoes can be a fresh substitute with a different but pleasant flavor.
Can I make this recipe dairy-free?
Yes, you can substitute heavy cream with coconut cream and use dairy-free cheese alternatives. The texture might differ slightly, but the overall experience will still be delightful.
How spicy is the Baked Tuscan Chicken Casserole Recipe?
This recipe is mild and comforting with just a hint of peppery warmth. You can always add crushed red pepper flakes or chili powder if you prefer a spicier kick.
Is this casserole freezer-friendly?
Definitely! Whether baked or unbaked, this casserole freezes well and is perfect for meal prepping or saving for busy weeknights.
Final Thoughts
The Baked Tuscan Chicken Casserole Recipe is truly a gem to keep in your recipe arsenal. It’s approachable, incredibly delicious, and brimming with the warm, comforting flavors of Tuscany that feel both indulgent and homey. You owe it to yourself to try it soon — your taste buds and dinner guests will thank you!
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Baked Tuscan Chicken Casserole Recipe
- Prep Time: 10 minutes
- Cook Time: 35 minutes
- Total Time: 45 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: Italian
Description
This Baked Tuscan Chicken Casserole features tender seared chicken breasts smothered in a creamy sauce made with sun-dried tomatoes, spinach, and Parmesan cheese, then baked to perfection with melted mozzarella and fresh basil garnish. A comforting and flavorful Italian-inspired dish perfect for a weeknight dinner.
Ingredients
Chicken and Seasonings
- 4 boneless, skinless chicken breasts
- 1 tablespoon olive oil
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon dried oregano
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
Sauce and Toppings
- 1 cup sun-dried tomatoes, chopped
- 2 cups fresh spinach, chopped
- 1 cup heavy cream
- 1/2 cup grated Parmesan cheese
- 1/2 cup shredded mozzarella cheese
- 1/4 cup fresh basil, chopped
Instructions
- Preheat oven: Preheat your oven to 375°F (190°C) to prepare for baking the casserole.
- Season chicken: Heat olive oil in a large skillet over medium heat. Season the chicken breasts evenly with garlic powder, onion powder, dried oregano, salt, and black pepper.
- Sear chicken: Place the seasoned chicken breasts in the skillet and sear for 3-4 minutes on each side until they develop a golden brown crust. Remove the chicken from the skillet and set aside.
- Cook spinach and tomatoes: In the same skillet, add chopped sun-dried tomatoes and spinach. Cook for 2-3 minutes, stirring occasionally, until the spinach wilts and the tomatoes soften.
- Make creamy sauce: Pour in the heavy cream and add the grated Parmesan cheese to the skillet. Stir continuously over medium heat until the sauce thickens slightly and becomes creamy.
- Assemble casserole: Place the seared chicken breasts into a baking dish. Pour the creamy tomato-spinach sauce evenly over the chicken breasts.
- Add cheese and bake: Sprinkle shredded mozzarella cheese on top of the sauce-covered chicken. Transfer the baking dish to the preheated oven and bake for 25-30 minutes, or until the chicken is fully cooked through (internal temperature of 165°F/74°C) and the cheese is melted, bubbly, and golden.
- Garnish and serve: Remove the casserole from the oven and sprinkle chopped fresh basil on top. Serve hot and enjoy your comforting Tuscan chicken casserole.
Notes
- You can substitute fresh spinach with frozen spinach, thoroughly drained to avoid excess liquid.
- For a lighter version, use half-and-half instead of heavy cream, but expect a slightly thinner sauce.
- Ensure chicken breasts are of similar size for even cooking.
- Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.
- Pair this casserole with crusty bread or a simple side salad for a complete meal.

