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Chicken Broccoli Casserole

close up shot of chicken broccoli casserole in a baking dish with a wooden spoon
The whole family will love this cosy comfort food. Full of cheesy flavor and lots of broccoli, this chicken broccoli casserole will make a delicious dinner full of hearty ingredients.
Prep Time 20 mins
Cook Time 40 mins
Total Time 1 hr
Course Main Course
Cuisine American
Servings 12 cups
Calories 384 kcal


  • 4 tablespoons salted butter
  • 1 teaspoon onion powder
  • 1 teaspoon garlic powder
  • 1 teaspoon salt
  • 2 teaspoon black pepper
  • 4 teaspoons chicken bouillon
  • 4 cups water
  • 2 cup half ’n’ half
  • 4 tablespoons cornstarch dissolved in 4 tablespoons of water
  • 24 ounces fresh broccoli florets the pieces need to be trimmed down to bite-size pieces if their pre-bagged broccoli has larger pieces
  • 16 ounces wide egg noodles cooked and drained
  • 4 cups cooked chicken diced or shredded
  • 1 cup Colby jack cheese grated


  • Preheat the oven to 350°F. Spray a 9x13 casserole dish with non-stick cooking spray and set aside.
  • In a large stockpot or Dutch oven, heat butter over medium until melted.
  • Add onion powder, garlic powder, salt, pepper, and bouillon to the butter and saute for 1 to 2 minutes.
  • Whisk in water and the half and half cream.
  • Dissolve 4 tablespoons cornstarch in 4 tablespoons of water to make a slurry, and then whisk this slurry into the filling mixture in the pot.
  • Whisk and cook over medium heat until the mixture comes to a simmer and begins to thicken.
  • Stir in broccoli florets and cook 1 to 2 minutes longer.
  • Spread cooked noodles and diced chicken evenly in the prepared casserole dish.
  • Pour the broccoli/sauce mixture over the top and stir to combine everything evenly.
  • Bake, covered with aluminum foil, for 30 minutes or until broccoli is fork-tender. Remove from the oven.
  • Stir the casserole to redistribute sauce. Sprinkle with cheese. Place foil loosely over the casserole and leave to set for 5 minutes. For a browned cheese, you can return the casserole, uncovered, to the oven for 5 to 10 minutes instead of setting it for 5 minutes.


Calories: 384kcalCarbohydrates: 36gProtein: 23gFat: 17gSaturated Fat: 9gTrans Fat: 1gCholesterol: 102mgSodium: 383mgPotassium: 455mgFiber: 3gSugar: 2gVitamin A: 766IUVitamin C: 51mgCalcium: 169mgIron: 2mg