If you’re craving a comforting, hearty meal that’s simple to prepare but packed with flavor, this Creamy Spinach Chicken Casserole is exactly what you need. Tender chicken breasts are layered with fresh spinach and a luscious cream cheese mixture, all topped off with melty mozzarella cheese. It’s a crowd-pleasing dish that works perfectly for busy weeknights or casual family dinners.

Creamy Spinach Chicken Casserole

Why You’ll Love This Recipe

This casserole combines the rich creaminess of cream cheese and sour cream with fresh spinach’s vibrant flavor, making every bite satisfyingly rich yet fresh. The spices add a subtle warmth, and searing the chicken before baking ensures a juicy, flavorful center. Plus, it’s all made in one dish, making cleanup a breeze. If you love cozy casseroles that feel indulgent but are easy to make, this recipe will quickly become a staple.

Ingredients

4 boneless, skinless chicken breasts
4 cups fresh spinach
8 ounces cream cheese, softened
½ cup sour cream
2 garlic cloves, minced
1 ½ cups shredded mozzarella cheese
1 teaspoon salt
½ teaspoon black pepper
½ teaspoon paprika
½ teaspoon onion powder
1 tablespoon olive oil

tip: you can find a full list of ingredients and measurements in the recipe card below.

Instructions

Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish.
Season the chicken breasts with salt, black pepper, paprika, and onion powder.
Heat olive oil in a skillet over medium-high heat and sear the chicken for 2-3 minutes per side until lightly browned. Remove from heat.
In a bowl, mix softened cream cheese, sour cream, minced garlic, and a pinch of salt until smooth and creamy.
Spread fresh spinach evenly on the bottom of the prepared baking dish.
Place the seared chicken breasts on top of the spinach layer.
Spread the cream cheese mixture evenly over the chicken.
Sprinkle shredded mozzarella cheese generously on top.
Bake uncovered for 25-30 minutes or until the chicken is fully cooked (internal temperature should reach 165°F) and the cheese is bubbly and golden.
Remove from the oven and let cool for 5 minutes before serving.

Variations

Substitute fresh spinach with frozen chopped spinach (thawed and squeezed dry) for convenience.
Add sliced mushrooms or sun-dried tomatoes for extra flavor and texture.
Use pepper jack cheese instead of mozzarella for a spicy kick.
Swap chicken breasts with thighs for a juicier option.
Add Italian seasoning or fresh herbs like thyme or basil for a herby twist.

Heating and Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F until warmed through or in the microwave for quicker meals. This casserole can also be prepared ahead and baked just before serving for easy entertaining.

Frequently Asked Questions

Can I use frozen spinach instead of fresh?

Yes, just thaw and squeeze out excess moisture before layering it in the casserole.

What can I substitute for cream cheese?

You can use ricotta or mascarpone cheese for a slightly different texture but similar creaminess.

How do I know when the chicken is done?

The internal temperature should reach 165°F (74°C). You can also cut into the thickest part to ensure it’s no longer pink.

Can I make this casserole dairy-free?

Yes, use dairy-free cream cheese, sour cream alternatives, and a plant-based cheese substitute.

Can I double this recipe?

Absolutely! Use a larger baking dish and increase baking time slightly until the chicken is cooked through.

Can I prepare this dish ahead of time?

Yes, assemble the casserole and refrigerate for up to 24 hours before baking.

What sides pair well with this casserole?

Serve with rice, mashed potatoes, or crusty bread for a complete meal.

Is this recipe low-carb?

Yes, it’s relatively low in carbs, especially if served without high-carb sides.

Can I use chicken thighs instead of breasts?

Yes, thighs will add more flavor and juiciness but may require a bit more cooking time.

How do I prevent the casserole from drying out?

Searing the chicken beforehand helps lock in moisture. Also, don’t overbake; check doneness early.

Conclusion

This Creamy Spinach Chicken Casserole is a perfect blend of simplicity and indulgence. With tender seared chicken, fresh spinach, and a rich, creamy topping, it offers a satisfying meal that’s easy to prepare and full of flavor. Whether you’re cooking for family or guests, this dish will become a favorite thanks to its comforting textures and rich taste.

Chef sara