Ingredients
For the Chicken and Vegetables:
- 4 large boneless, skinless chicken breasts (or 6–8 boneless thighs)
- 4 cups fresh broccoli florets
- 2 tablespoons olive oil or butter
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon paprika
- 1 teaspoon Italian seasoning
For the Creamy Sauce:
- 2 tablespoons butter
- 4 cloves garlic, minced
- 2 tablespoons all-purpose flour
- 2 cups heavy cream
- 1 cup chicken broth
- 1 cup freshly grated Parmesan cheese
- ½ cup shredded mozzarella cheese
- ½ teaspoon dried thyme
- ½ teaspoon onion powder
- Salt and pepper to taste
Optional Toppings:
- Extra mozzarella or Parmesan
- Chopped fresh parsley
- Crushed red pepper flakes
Step-by-Step Instructions
1. Prepare the Oven and Ingredients
Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with butter or nonstick spray. Cut the broccoli into evenly sized florets and pat the chicken dry with paper towels.
2. Season the Chicken
In a small bowl, combine salt, pepper, paprika, and Italian seasoning. Rub this mixture evenly over both sides of the chicken pieces.
3. Sear the Chicken
Heat olive oil or butter in a large skillet over medium-high heat. Add the chicken and sear for 4–5 minutes per side until golden brown. The chicken does not need to be fully cooked at this stage—it will finish baking in the oven. Remove from the skillet and set aside.
4. Lightly Cook the Broccoli
Bring a pot of salted water to a boil and blanch the broccoli for 2–3 minutes. Drain immediately and rinse with cold water to stop the cooking process. This preserves color and texture.
5. Prepare the Cream Sauce
In the same skillet used for the chicken, melt butter over medium heat. Add minced garlic and sauté for about 30 seconds until fragrant.
6. Create a Roux
Stir in the flour and cook for 1–2 minutes, whisking constantly. This step thickens the sauce and eliminates any raw flour taste.
7. Add Liquids
Gradually whisk in the chicken broth and heavy cream. Continue stirring until the mixture begins to thicken.
8. Add Cheese and Seasoning
Reduce heat to low and stir in Parmesan and mozzarella cheese. Add thyme, onion powder, and additional salt and pepper as needed. Simmer gently until smooth and creamy.
9. Assemble the Casserole
Arrange the seared chicken in the prepared baking dish. Scatter the broccoli evenly around and between the chicken pieces.
10. Pour the Sauce
Carefully pour the creamy sauce over the chicken and broccoli, ensuring everything is evenly coated.
11. Add Extra Cheese (Optional)
Sprinkle additional mozzarella or Parmesan on top for a golden, bubbly finish.
12. Bake
Place the casserole in the preheated oven and bake uncovered for 25–30 minutes, or until the chicken reaches an internal temperature of 165°F (74°C).
13. Broil for Color
For extra browning, broil on high for 2–3 minutes at the end of baking. Watch carefully to prevent burning.
14. Rest Before Serving
Allow the casserole to rest for 5–10 minutes after removing it from the oven. This helps the sauce thicken slightly and makes serving easier.
Useful Tips for Success
Use freshly grated cheese instead of pre-shredded varieties for smoother melting and better flavor. Pre-shredded cheese often contains anti-caking agents that can affect texture.
If you prefer a lighter version, substitute half-and-half for heavy cream, though the sauce may be slightly less rich.
For added depth, sauté sliced mushrooms or onions before making the sauce and incorporate them into the casserole.
This dish pairs beautifully with fluffy rice, buttered egg noodles, roasted potatoes, or even a crisp green salad for balance.
Leftovers can be stored in an airtight container in the refrigerator for up to 4 days. Reheat gently in the oven at 325°F or in the microwave in short intervals.
Serving and Presentation
For a professional presentation, garnish the finished casserole with freshly chopped parsley and a light sprinkle of extra Parmesan. Serve directly from the baking dish for a rustic, family-style feel, or portion onto warm plates for a more refined dining experience.
This Creamy Broccoli and Chicken Casserole is more than just a meal—it’s a comforting, crowd-pleasing dish that brings warmth and satisfaction to any table. With its balanced flavors, creamy texture, and golden finish, it’s sure to become a staple in your recipe collection.