Creamy Chicken Spinach Casserole (Printable Version)
Tender chicken and vibrant spinach in a rich, creamy cheese sauce baked golden and bubbly.
# What You Need:
→ Meats
01 - 2 large boneless, skinless chicken breasts (about 1.1 lb), diced
→ Vegetables
02 - 4 cups fresh spinach, roughly chopped
03 - 1 medium yellow onion, finely chopped
04 - 2 cloves garlic, minced
→ Dairy
05 - 1 cup heavy cream
06 - 1 cup shredded mozzarella cheese
07 - ½ cup grated Parmesan cheese
08 - 2 tablespoons cream cheese, softened
09 - 2 tablespoons unsalted butter
→ Seasonings
10 - 1 teaspoon dried Italian herb blend
11 - ½ teaspoon kosher salt, or to taste
12 - ¼ teaspoon freshly ground black pepper
13 - ¼ teaspoon ground nutmeg (optional)
→ Pantry Staples
14 - ½ cup low-sodium chicken broth
15 - ½ cup breadcrumbs (use gluten-free if needed)
16 - Olive oil, for greasing the baking dish
# How To Make It:
01 - Preheat oven to 375°F. Lightly grease a 9×9-inch baking dish with olive oil or butter and set aside.
02 - Melt the butter in a large skillet over medium heat. Add the diced chicken, season with salt and pepper, and cook until lightly browned on all sides but not fully cooked through, about 5–6 minutes. Remove the chicken from the pan and set aside.
03 - In the same skillet, add a touch more butter if needed. Sauté the onion for 3 minutes until softened, then stir in the garlic and cook for 1 additional minute. Add the chopped spinach and cook until wilted, about 2–3 minutes.
04 - Pour in the chicken broth, heavy cream, and cream cheese. Simmer gently, stirring constantly, until the sauce is smooth and slightly thickened. Season with the Italian herbs and nutmeg, if using.
05 - Return the seared chicken to the skillet. Fold in half of the mozzarella and all of the Parmesan cheese, stirring until evenly incorporated. Remove the pan from heat.
06 - Transfer the entire mixture to the prepared baking dish, spreading it into an even layer. Top with the remaining mozzarella and a generous sprinkle of breadcrumbs. Bake uncovered for 20–25 minutes until the topping is golden brown and the edges are bubbling.
07 - Remove the casserole from the oven and let it stand for 5 minutes to set before serving.
# Helpful Hints:
01 -
- It turns five basic ingredients into something that tastes like you spent three times as long as you actually did.
- The cream sauce is rich enough to feel indulgent but the spinach keeps everything surprisingly balanced.
02 -
- Do not skip the resting time because piping hot casserole turns into a soupy mess on the plate if you rush it.
- Browning the chicken first and finishing it in the oven keeps it incredibly tender compared to cooking it entirely on the stove.
03 -
- A tiny pinch of nutmeg in cream sauce is a restaurant trick that most home cooks never think to use, and it elevates the entire dish from good to memorable.
- Grate your own Parmesan from a block rather than using the pre shredded variety because the fresh stuff melts smoother and tastes exponentially better.