Making Chicken Enchilada Rice Casserole is easy with these simple steps:

1. Preheat Your Oven: Set your oven to 350°F (175°C).
2. Sauté Vegetables: In a skillet, heat a tablespoon of olive oil over medium heat. Add the diced onion and cook until soft, about 3-4 minutes. Stir in the minced garlic and cook for an additional minute.
3. Combine Ingredients: In a large mixing bowl, combine the cooked rice, chicken, enchilada sauce, black beans, corn, sautéed onion and garlic, and half of the shredded cheese. Mix well until everything is evenly coated.
4. Season: Add ground cumin, chili powder, salt, and pepper to taste. Stir to incorporate.
5. Transfer to Baking Dish: Pour the mixture into a greased 9×13 inch baking dish.
6. Top with Cheese: Sprinkle the remaining cheese evenly over the top of the casserole.
7. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes, or until the cheese is melted and bubbly.
8. Cool and Serve: Once baked, allow the casserole to cool for 5-10 minutes before serving.

By following these steps, you’ll effortlessly create a delicious Chicken Enchilada Rice Casserole that everyone will love!