If you’re looking for a comforting, rich, and utterly delicious meal that feels fancy but is easy enough for any weeknight, this Baked Tuscan Chicken Casserole Recipe is an absolute keeper. Imagine tender, juicy chicken breasts nestled in a creamy blend of sun-dried tomatoes, spinach, and cheeses that bake into a golden, bubbling masterpiece. Every bite delivers a perfect balance of savory, tangy, and fresh flavors, making it a crowd-pleaser that you’ll want to make again and again.

Ingredients You’ll Need
The beauty of this Baked Tuscan Chicken Casserole Recipe lies in its straightforward ingredients. Each item plays a crucial role, whether it’s enhancing creaminess, adding vibrant color, or layering on delicious Mediterranean flavors.
- 4 boneless, skinless chicken breasts: The star protein, lean yet juicy when cooked just right.
- 1 tablespoon olive oil: For searing the chicken, adding a subtle fruity richness.
- 1 teaspoon garlic powder: Delivers that classic aromatic depth without overpowering the dish.
- 1 teaspoon onion powder: Adds sweetness and complexity to the seasoning.
- 1 teaspoon dried oregano: Brings in a fragrant Mediterranean touch that complements the tomatoes and spinach.
- 1/2 teaspoon salt: Enhances all the flavors perfectly.
- 1/4 teaspoon black pepper: Adds a gentle, warming spice.
- 1 cup sun-dried tomatoes, chopped: Bursts of tangy sweetness that lift the whole casserole.
- 2 cups fresh spinach, chopped: Adds vibrant green color and a fresh, earthy note.
- 1 cup heavy cream: The key to that luscious, velvety sauce that ties everything together.
- 1/2 cup grated Parmesan cheese: Imparts a salty, nutty flavor that thickens the sauce beautifully.
- 1/2 cup shredded mozzarella cheese: Melts on top for that irresistible golden crust.
- 1/4 cup fresh basil, chopped: A fresh, herbal finish that brightens the rich casserole.
How to Make Baked Tuscan Chicken Casserole Recipe
Step 1: Preheat and Prepare
Start by heating your oven to 375°F (190°C). This sets the perfect temperature for baking the casserole until it’s bubbling and golden without drying out the chicken.
Step 2: Season and Sear the Chicken
Heat 1 tablespoon of olive oil in a large skillet over medium heat. While the pan warms, generously season the chicken breasts with garlic powder, onion powder, dried oregano, salt, and pepper. Searing them for 3-4 minutes on each side gives you a delicious, golden crust that locks in moisture and flavor—an essential step for tender chicken.
Step 3: Prepare the Filling
Once you remove the seared chicken from the skillet, add the chopped sun-dried tomatoes and fresh spinach to the same pan. Cook for 2-3 minutes until the spinach wilts and the tomatoes release their sweet tang. This quick sauté creates the flavor-packed base for your creamy sauce.
Step 4: Make the Creamy Sauce
Pour in the heavy cream and stir in the grated Parmesan cheese. Keep stirring until the sauce thickens slightly and clings to the spinach and tomatoes—this rich, velvety sauce is what makes this Baked Tuscan Chicken Casserole Recipe truly unforgettable.
Step 5: Assemble and Bake
Place the chicken breasts in a baking dish, then pour the creamy tomato and spinach sauce over them, ensuring every piece gets coated wonderfully. Sprinkle shredded mozzarella cheese on top to create that mouth-watering cheesy crust as it bakes. Bake for 25-30 minutes until the chicken is cooked through and the cheese is perfectly melted and bubbly.
Step 6: Garnish and Serve
Once out of the oven, sprinkle freshly chopped basil over the top for a bright, herbal finish that complements the richness of the casserole. Now you’re ready to enjoy a plateful of this comforting, elegant dish!
How to Serve Baked Tuscan Chicken Casserole Recipe

Garnishes
Fresh basil is a classic! Feel free to add a sprinkle of freshly cracked black pepper or a few extra Parmesan shavings for an elevated touch. These simple garnishes not only enhance the look but also add layers of fresh flavor that balance the creamy richness.
Side Dishes
This casserole shines beautifully alongside a crisp green salad with a light vinaigrette to cut through the creaminess, or serve it with garlic bread to soak every last bit of that luscious sauce. Roasted vegetables or a simple quinoa pilaf work wonderfully as well, adding texture and complementing the savory flavors.
Creative Ways to Present
For a special occasion, try serving individual portions in oven-safe ramekins. Layer the chicken and sauce with extra cheese on top and broil for a minute or two for an extra crispy finish. Or, pair it with colorful roasted cherry tomatoes and basil leaves arranged artistically on the plate for a beautiful presentation that wows guests.
Make Ahead and Storage
Storing Leftovers
Leftover Baked Tuscan Chicken Casserole Recipe keeps well in an airtight container in the fridge for up to 3 days. It tastes even better after the flavors have mingled overnight, making it a perfect next-day meal.
Freezing
You can freeze the casserole either before or after baking. Wrap it tightly with plastic wrap and aluminum foil to prevent freezer burn, and store it for up to 2 months. Thaw overnight in the fridge before reheating for best results.
Reheating
Reheat individual portions gently in the microwave or warm the entire casserole in a preheated oven at 350°F (175°C) until heated through, usually about 15-20 minutes. If the top isn’t as bubbly, a short broil at the end will refresh that gorgeous melted cheese crust.
FAQs
Can I use chicken thighs instead of chicken breasts?
Absolutely! Chicken thighs will add extra tenderness and a bit more flavor due to their higher fat content. Just ensure they are cooked through, which might take a few minutes longer in the oven.
Is it possible to make this dish dairy-free?
Yes, you can substitute the heavy cream with coconut cream or a dairy-free cream alternative and use vegan cheeses. The flavors will still shine, though the creaminess may be a little different.
Can I prepare this casserole ahead of time?
Definitely. You can assemble the casserole and refrigerate it for up to 24 hours before baking. Just add a few extra minutes to the baking time if it’s going into the oven cold.
What if I don’t have sun-dried tomatoes?
Sun-dried tomatoes provide a unique sweet and tangy flavor, but if you don’t have them, you can substitute with chopped roasted red peppers or even cherry tomatoes sautéed until soft. The taste will vary slightly but remain delicious.
How do I know when the chicken is fully cooked?
The chicken is done when it reaches an internal temperature of 165°F (74°C). It should be firm to the touch and juices should run clear when cut into. Using a meat thermometer is the most reliable way to ensure safety without overcooking.
Final Thoughts
This Baked Tuscan Chicken Casserole Recipe is more than just a meal—it’s a cozy, flavorful hug at the end of any day. Its creamy sauce, tender chicken, and vibrant veggies come together in such a satisfying way that it’s guaranteed to become one of your go-to dishes. Trust me, once you try it, you’ll be craving it again and again. So preheat that oven and dive into this Tuscan masterpiece—you deserve it!
Print
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 is a creamy, flavorful dish featuring juicy seared chicken breasts baked in a rich sauce of sun-dried tomatoes, spinach, heavy cream, and Parmesan, topped with melted mozzarella and fresh basil. Perfect for a comforting weeknight dinner, this casserole combines Italian-inspired ingredients to create a delicious, cheesy one-dish meal.
Ingredients
Chicken
- 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 & 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 with garlic powder, onion powder, dried oregano, salt, and black pepper, making sure they are evenly coated.
- Sear Chicken: Place the chicken breasts in the hot skillet and sear them for 3-4 minutes on each side until they are golden brown. Remove the chicken from the skillet and set aside temporarily.
- Cook Vegetables: In the same skillet, add the chopped sun-dried tomatoes and fresh spinach. Cook for 2-3 minutes, allowing the spinach to wilt and the tomatoes to release flavor.
- Make Creamy Sauce: Pour in the heavy cream and add the grated Parmesan cheese to the skillet. Stir continuously until the sauce thickens slightly and combines well with the vegetables.
- Assemble Casserole: Arrange the seared chicken breasts in a baking dish and pour the creamy tomato-spinach sauce evenly over the chicken.
- Add Cheese and Bake: Sprinkle the shredded mozzarella cheese on top of the chicken and sauce. Place the baking dish in the oven and bake for 25-30 minutes, or until the chicken is cooked through and the cheese is melted and bubbly.
- Garnish and Serve: Remove the casserole from the oven and garnish with freshly chopped basil before serving. Enjoy your warm, comforting Tuscan chicken casserole!
Notes
- For deeper flavor, marinate the chicken breasts with the seasoning spices for 30 minutes before cooking.
- If sun-dried tomatoes are packed in oil, drain them well before chopping to avoid excess oiliness.
- You can substitute heavy cream with half-and-half for a lighter version, though the sauce will be less rich.
- To make this dish gluten-free, ensure all seasoning blends and cheese are labeled gluten-free.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.