Chicken and Broccoli Casserole Recipe
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4.44 from 16 votes

Chicken Broccoli Casserole Recipe

Delicious chicken and broccoli casserole with optional sour cream, cheese, and spices.
Prep Time20 mins
Cook Time30 mins
Total Time50 mins
Course: Main
Servings: 6 servings
Calories: 356kcal
Author: Katie Wells


  • 4 chicken breasts (cooked)
  • 4 TBSP butter (cubed)
  • 1 bag frozen broccoli (or 1 head fresh)
  • 1 bag frozen cauliflower (or 1 head fresh)
  • 1 onion (diced)
  • 2 cups cheddar cheese (shredded, optional)
  • 2/3 cup sour cream (optional)
  • ¼ cup water
  • 1 tsp basil
  • 1 tsp garlic powder
  • 1 tsp salt
  • 1 tsp pepper
  • ¼ cup Parmesan cheese (optional)


  • Preheat oven to 375°F.
  • If not using pre-cooked chicken, bake chicken until cooked or dice and sauté in a pan.
  • Place butter in the bottom of a 9x13 baking dish. 
  • Add broccoli, cauliflower, and diced onion.
  • Put in oven about 20-25 minutes or until heated and mostly cooked.
  • While vegetables are heating, chop chicken into bite sized pieces and grate cheddar cheese if necessary.
  • Remove vegetables from oven.
  • Add chopped chicken, cheddar cheese, sour cream, spices, and ¼ cup water and mix well.
  • Top with Parmesan if desired and put back in oven until everything is warm and cheese is melted.


The time frame listed for this recipe applies to use of pre-cooked chicken and diced frozen vegetables. 
Make and extra batch and freeze it for an easy meal another time!


Serving: 1½ cups | Calories: 356kcal | Carbohydrates: 9.7g | Protein: 18.5g | Fat: 28g | Saturated Fat: 17.6g | Cholesterol: 85mg | Sodium: 812mg | Fiber: 2.9g | Sugar: 3g