Creamy Chicken and Broccoli Casserole in One Pan

Warm, bubbling, and intensely satisfying, this creamy chicken and broccoli casserole is the ultimate comfort food for busy weeknights. Every single spoonful delivers a perfect balance of savory, seasoned chicken, tender-crisp broccoli, and a velvety, rich cream sauce that binds everything together.

Topped with a generous layer of melted cheese that pulls beautifully as you serve it, this dish is guaranteed to become a household favorite that everyone will love.

This recipe streamlines the classic chicken and broccoli bake into an easy, highly flavorful process. By searing seasoned chicken slices first, you lock in the natural juices and develop a beautiful golden crust that enhances the overall flavor profile.

Drizzled with a luscious, pre-made cream sauce and finished under the broiler with a mountain of shredded cheese, this casserole satisfies the deepest cravings for something warm, savory, and wonderfully cheesy without spending hours in the kitchen.

Ingredients

Why this recipe works

Searing the chicken before assembling the casserole is a crucial step that elevates this dish from simple to spectacular. When chicken slices hit a hot skillet, they develop a deeply caramelized surface that locks in moisture and adds a complex, savory depth of flavor.

This initial sear ensures the chicken remains incredibly juicy and tender throughout the subsequent broiling process, preventing the dry, rubbery texture often associated with baked poultry.

Fresh broccoli is used directly in the baking tray to maintain its vibrant color, structural integrity, and fresh taste. Unlike pre-boiled or frozen broccoli, which can easily turn mushy and water down the cream sauce, fresh florets steam perfectly in the oven under the blanket of creamy sauce and melting cheese. This method allows the broccoli to absorb the savory flavors of the chicken while retaining a delightful tender-crisp bite.

Notes and substitutions

For the best results, select high-quality chicken slices and ensure they are cut uniformly to cook evenly in the skillet. When it comes to the cheese, grating your own from a block of cheddar or mozzarella is highly recommended.

Pre-shredded packaged cheeses are coated with anti-caking agents like starch, which prevent them from melting smoothly and can result in a grainy texture. Freshly grated cheese melts into a perfectly smooth, stretchy, and molten layer.

The creamy sauce can be store-bought or made ahead of time using your favorite recipe. A rich alfredo or a simple white cream sauce works beautifully here. Ensure the sauce is at room temperature or slightly warmed before drizzling it over the broccoli and chicken to help it distribute evenly throughout the tray, resulting in a silkier, more cohesive casserole that clings beautifully to every piece.

• creamy sauce: a homemade blend of heavy cream and cream cheese whisked together until smooth
• cheese: shredded cheddar, mozzarella, or Monterey Jack cheese for a custom flavor profile

Equipment

• large skillet
• foil baking pan
• measuring cups
• measuring spoons
• whisk
• chef's knife
• cutting board