If you’re searching for a comforting dish that feels like a warm hug from the inside, look no further than this Creamy Chicken and Spinach Casserole with Mozzarella Recipe. It’s a perfect harmony of tender chicken, fresh spinach, and luscious cream cheese all baked under a golden layer of bubbling mozzarella. Each bite melts in your mouth, balancing creamy richness with savory spices, and it’s one of those meals you’ll want to make again and again to share with loved ones. Trust me, once you try this, it will quickly climb to a top spot among your favorite homestyle casseroles.

Ingredients You’ll Need
Preparing this casserole is surprisingly straightforward, thanks to a handful of simple yet wonderfully complementary ingredients. Every element is thoughtfully chosen to build layers of flavor, texture, and color that make this dish so special.
- Boneless, skinless chicken breasts: The hearty protein base that soaks up all the delicious flavors.
- Fresh spinach: Adds vibrant green color and a mild earthy flavor that pairs perfectly with creamy cheese.
- Cream cheese: Softened to create a smooth, rich sauce that makes this casserole irresistibly creamy.
- Sour cream: Brings a subtle tang that brightens the richness of the cream cheese mixture.
- Garlic cloves, minced: Gives a gentle kick and aromatic depth without overpowering the dish.
- Shredded mozzarella cheese: Melts beautifully on top, creating a golden, bubbly crust that pulls apart with ease.
- Salt, black pepper, paprika, and onion powder: A perfect blend of seasonings that adds warmth and enhances every bite.
- Olive oil: Used for searing the chicken, locking in juices and developing a lovely golden-brown crust.
How to Make Creamy Chicken and Spinach Casserole with Mozzarella Recipe
Step 1: Preheat and Prepare
Start by preheating your oven to 375°F (190°C). Grease a 9×13-inch baking dish generously to ensure the casserole won’t stick, setting a smooth stage for our delicious layers.
Step 2: Season the Chicken
Pat the chicken breasts dry and season them with salt, black pepper, paprika, and onion powder. These simple spices awaken the chicken with cozy, comforting notes.
Step 3: Sear the Chicken
Heat olive oil in a skillet over medium-high heat. Sear each chicken breast for 2-3 minutes on each side until they develop a beautiful golden-brown exterior but aren’t fully cooked through—the oven will finish the job.
Step 4: Mix the Cream Cheese Sauce
In a bowl, combine the softened cream cheese, sour cream, minced garlic, and a pinch of salt. Whisk everything until you have a smooth, creamy mixture that will lend the casserole its signature luscious texture.
Step 5: Assemble the Layers
Begin by spreading the fresh spinach evenly across the bottom of the greased baking dish. Lay the seared chicken breasts on top of the spinach, creating distinct layers of flavor and texture.
Step 6: Add the Cream Cheese Mixture
Evenly spread the creamy cheese mixture over the chicken breasts. This sauce will mingle with the spinach and chicken as it bakes, infusing every bite with richness.
Step 7: Top with Mozzarella and Bake
Sprinkle the shredded mozzarella cheese generously over the entire casserole. Place into the oven and bake for 25-30 minutes until the chicken is fully cooked and the cheese is gloriously bubbly and slightly golden.
Step 8: Rest Before Serving
Once baked, remove from the oven and let the casserole rest for about 5 minutes. This brief pause allows the flavors to settle and makes it easier to serve.
How to Serve Creamy Chicken and Spinach Casserole with Mozzarella Recipe

Garnishes
Fresh herbs like chopped parsley or basil sprinkled on top add a pop of color and brightness to balance out the gooey cheese. A light drizzle of extra virgin olive oil or a squeeze of lemon juice can also elevate the flavors beautifully.
Side Dishes
This casserole pairs wonderfully with a crisp green salad dressed in a tangy vinaigrette, or some roasted vegetables to add a complementary crunch. For a heartier meal, creamy mashed potatoes or garlic bread make perfect companions.
Creative Ways to Present
Serve this casserole straight from an attractive baking dish for casual family dinners or transfer individual portions onto warm plates garnished with a sprinkle of extra mozzarella or parmesan for a restaurant-style experience at home. It’s equally delightful in small ramekins for a charming single-serving presentation.
Make Ahead and Storage
Storing Leftovers
Place any leftover casserole in an airtight container and store it in the refrigerator for up to 3 days. The flavors meld beautifully after sitting, making your next meal even tastier.
Freezing
This Creamy Chicken and Spinach Casserole with Mozzarella Recipe also freezes well. Wrap it tightly or use freezer-safe containers to keep it fresh for up to 2 months. Just thaw overnight in the fridge before reheating.
Reheating
Reheat leftovers in the oven at 350°F (175°C) until warmed through to retain that cheesy bubbly top and moist chicken. Alternatively, microwave in short intervals, stirring or flipping portions for even heat distribution.
FAQs
Can I use frozen spinach instead of fresh?
Yes, you can use frozen spinach, but make sure to thaw it completely and squeeze out excess water. This prevents the casserole from becoming watery.
Is there a way to make this recipe dairy-free?
Substituting cream cheese and mozzarella with dairy-free alternatives can work, but the texture and flavor may differ slightly. Look for plant-based cream cheese and shredded cheese blends designed for melting.
Can I substitute the chicken breasts for another protein?
Absolutely! Boneless, skinless turkey breasts or even firm tofu can be delicious alternatives, adjusting cooking time as needed to ensure thorough cooking.
What is the best way to ensure the chicken stays juicy?
Searing the chicken briefly locks in juices, and not overbaking the casserole will help keep the meat tender. Letting it rest after baking also allows juices to redistribute.
Can I prepare this casserole ahead of time before baking?
Yes! You can assemble the casserole up to a day in advance. Keep it covered in the fridge and bake just before serving for convenient meal prep.
Final Thoughts
There’s something so satisfying about the warm, comforting flavors wrapped up in this Creamy Chicken and Spinach Casserole with Mozzarella Recipe. It’s straightforward yet so rich and indulgent that it quickly becomes a family favorite. Whether you’re cooking a weeknight dinner or a weekend treat, this casserole promises to bring smiles around the table. Give it a try—you might just find yourself craving that perfect cheesy, creamy bite again and again!
Print
Creamy Chicken and Spinach Casserole with Mozzarella Recipe
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Total Time: 40 minutes
- Yield: 4 servings
- Category: Main Dish
- Method: Baking
- Cuisine: American
Description
This creamy and comforting Chicken and Spinach Casserole combines tender seared chicken breasts with fresh spinach, a rich cream cheese and sour cream mixture, and a generous topping of melted mozzarella cheese. Baked to perfection, this hearty casserole makes a delicious and satisfying meal perfect for family dinners or meal prepping.
Ingredients
Chicken
- 4 boneless, skinless chicken breasts
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon paprika
- 1/2 teaspoon onion powder
- 1 tablespoon olive oil
Vegetables
- 4 cups fresh spinach
- 2 garlic cloves, minced
Dairy
- 8 ounces cream cheese, softened
- 1/2 cup sour cream
- 1 1/2 cups shredded mozzarella cheese
Instructions
- Preheat the Oven: Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish to prevent sticking.
- Prepare the Chicken: Season the chicken breasts evenly with salt, black pepper, paprika, and onion powder to enhance the flavor.
- Sear the Chicken: Heat olive oil in a skillet over medium-high heat, then sear the chicken breasts for 2-3 minutes on each side until browned but not entirely cooked through, locking in the juices.
- Make the Cream Cheese Mixture: In a mixing bowl, combine softened cream cheese, sour cream, minced garlic, and a pinch of salt. Mix until the mixture is smooth and well incorporated.
- Assemble the Casserole: Spread the fresh spinach evenly in the prepared baking dish as the base layer.
- Add the Chicken and Spread Mixture: Place the seared chicken breasts over the spinach. Spread the cream cheese mixture evenly over the top of the chicken.
- Add the Cheese and Bake: Sprinkle the shredded mozzarella over the entire casserole. Place the dish in the preheated oven and bake for 25-30 minutes, until the chicken is fully cooked and the cheese is bubbly and slightly golden.
- Serve: Remove the casserole from the oven and allow it to rest for 5 minutes before serving to let the flavors meld and to avoid burning.
Notes
- For extra flavor, you can add some chopped onions or mushrooms to the spinach layer before baking.
- Ensure the chicken is properly seared to keep the moisture inside and give a nice texture.
- You can substitute mozzarella with a low-fat cheese option to reduce calories.
- Leftovers keep well refrigerated for up to 3 days and can be reheated in the oven or microwave.
- Use fresh spinach for best texture; frozen spinach can result in extra moisture after baking.

