Follow these straightforward steps for creating the Easy Chicken Burrito Casserole:

1. Preheat the Oven: Set your oven temperature to 350°F (175°C) to prepare for baking.
2. Prepare Ingredients: In a large mixing bowl, combine the shredded chicken, black beans, corn, salsa, cooked rice, chili powder, cumin, and garlic powder. Stir thoroughly to mix all ingredients evenly.
3. Layer Tortillas: Take a 9×13 inch casserole dish and lay half of the flour tortillas flat on the bottom. Overlap them slightly so the entire base is covered.
4. Spread Mixture: Pour half of the chicken mixture over the tortillas, spreading it evenly.
5. Add Cheese: Sprinkle 1 cup of the shredded cheese over the chicken mixture.
6. Repeat Layers: Place the remaining tortillas on top, followed by the rest of the chicken mixture, and finish with the remaining cheese.
7. Bake: Cover the casserole with aluminum foil and place it in the preheated oven for 25-30 minutes. Remove the foil for the last 10 minutes to allow the cheese to melt and brown.
8. Cool and Serve: Once baked, remove the casserole from the oven and let it cool for a few minutes. This makes slicing easier and prevents burns.
9. Garnish: Add any optional toppings like sour cream, cilantro, or jalapeños before serving.

By following these instructions, you’ll create a casserole that is not only easy to make but also bursts with flavor.