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Delicious Broccoli Chicken Casserole topped with cheese and fresh herbs

Broccoli Chicken Casserole

A comforting and creamy casserole loaded with chicken, broccoli, and cheese, perfect for busy weeknights.
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course Dinner, Main Course
Cuisine American
Servings 6 servings

Ingredients
  

Main Ingredients

  • 2 cups broccoli florets (fresh or briefly steamed frozen)
  • 2 cups cooked chicken, shredded (rotisserie chicken or leftovers work great)
  • 2 cups cooked pasta (elbow, penne, rotini — any short pasta)
  • 1 cup cheddar cheese, shredded (sharp cheddar gives more flavor)
  • 1 cup mushrooms, sliced (button or cremini)
  • 1 cup cream or milk (whole milk, half-and-half, or a lighter milk — cream makes it richer)
  • 2 tablespoons olive oil
  • 1 teaspoon garlic powder
  • Salt and pepper to taste
  • Optional: breadcrumbs for topping (Panko gives a crisp finish)

Instructions
 

Preparation

  • Preheat the oven to 350°F (175°C) and grease a baking dish.
  • Heat olive oil in a large skillet over medium heat. Add the sliced mushrooms and cook until they release their liquid and soften (about 4–6 minutes).
  • Reduce heat slightly and stir in the cream or milk. Sprinkle in garlic powder, then season with salt and pepper. Let the sauce warm and thicken for 2–3 minutes; don’t boil.
  • In a large bowl, combine the cooked pasta, shredded chicken, and broccoli. Pour the mushroom-cream mixture over and toss until everything is evenly coated.

Baking

  • Transfer the mixture to the prepared baking dish, spreading it into an even layer. Sprinkle the shredded cheddar across the top. Add optional breadcrumbs for crunch.
  • Bake for 25–30 minutes, until the cheese is bubbly and edges are golden.
  • Let rest 5 minutes before serving so the casserole firms up slightly. Serve warm.

Notes

For a lighter meal, serve smaller portions and bulk up the plate with a large mixed greens salad. For a heartier dinner, a side of garlic bread complements the cheesy sauce.
Keyword Broccoli Chicken Casserole, Comfort Food, Easy Casserole, Quick Dinner, Weeknight Meal