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Cheesy Chicken Broccoli and Rice Casserole
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4.17 from 24 votes

Cheesy Chicken Broccoli Rice Casserole

The best, cheesy chicken, broccoli, and rice casserole featuring melty Colby Jack cheese and a crunchy Cornflake topping. 
Prep Time25 minutes
Cook Time30 minutes
Total Time55 minutes
Course: Main Course
Cuisine: American
Keyword: Chicken Broccoli Rice Casserole
Servings: 12
Calories: 439kcal
Author: Kelly Anthony

Ingredients

  • 3 tablespoons unsalted butter
  • 1 yellow onion, diced
  • 3 tablespoons all-purpose flour
  • 1 ½ cup unsalted chicken broth
  • 1 cup half and half
  • 1 teaspoon Kosher salt
  • ½ teaspoon black pepper
  • 2 cups freshly grated Colby Jack cheese
  • ⅓ cup + 1 tablespoon mayonnaise (optional)
  • 6 cups steamed white rice
  • 3 cups roughly chopped, steamed broccoli florets
  • 3 cups cooked, shredded chicken
  • 1 cup Corn Flakes, crushed

Instructions

  • Preheat the oven to 375° and have ready a greased casserole dish.
  • Add the butter to a sauté pan over medium heat. Do not allow the butter to brown. As soon as the butter has melted, add the diced onions and sauté 5-7 minutes, stirring often, until softened. 
  • Sprinkle the flour over the onions and stir until combined, about 1 minute. Add the chicken broth one big splash at a time, stirring well after each addition. Add in the half and half, salt, and pepper and stir. Allow the mixture to come to a simmer. Simmer for 3-5 minutes, stirring often, until thickened. Remove from the heat. 
  • Add cheese and mayonnaise (if using) in a small mixing bowl, and stir to combine. Set aside until ready to use.
  • In a large bowl, combine the white rice, broccoli, chicken, and sauce. Stir to combine, and transfer the mixture to the prepared baking dish. Scatter the cheese across the top, followed by the Corn Flakes.
  • Cover the dish with aluminum foil and bake for 20 minutes. Uncover the dish and continue baking for 10 minutes more. Allow to cool slightly, serve, and enjoy.

Notes

NOTE: Your prep time will vary depending on your choice of preparations for the rice, broccoli, and chicken.

Nutrition

Calories: 439kcal | Carbohydrates: 44g | Protein: 18g | Fat: 20g | Saturated Fat: 9g | Cholesterol: 66mg | Sodium: 644mg | Potassium: 307mg | Fiber: 1g | Sugar: 3g | Vitamin A: 890IU | Vitamin C: 25.3mg | Calcium: 200mg | Iron: 6.5mg