Follow these easy steps to create the Green Chile Chicken Enchilada Casserole:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Grease the Baking Dish: Lightly grease a 9×13 inch baking dish with olive oil to prevent sticking.
3. Mix the Chicken Mixture: In a large bowl, combine the cooked shredded chicken, diced green chiles, 1 cup of cheese, sour cream, garlic powder, onion powder, cumin, salt, and black pepper. Stir until well blended.
4. Prepare the Tortillas: In a separate bowl, pour half of the enchilada sauce. Briefly dip each tortilla in the sauce to soften.
5. Layer the Casserole: Start layering by placing 4 tortillas at the bottom of the greased baking dish. Spread half of the chicken mixture over the tortillas, followed by ⅓ of the remaining enchilada sauce.
6. Add Cheese: Sprinkle ⅓ of the remaining cheese over the chicken layer.
7. Repeat Layers: Repeat the layering process with 4 more tortillas, the other half of the chicken mixture, another ⅓ of the enchilada sauce, and another ⅓ of the cheese.
8. Top with Tortillas: For the final layer, use the last 4 tortillas. Pour the remaining enchilada sauce over the top and sprinkle the last of the cheese evenly.
9. Bake: Cover the dish with aluminum foil and bake for 25 minutes. Remove the foil and bake for an additional 10 minutes, or until the cheese is bubbling and golden brown.
10. Cool: Allow the casserole to cool for 5-10 minutes before serving.

Follow these instructions, and you’ll have an incredible Green Chile Chicken Enchilada Casserole that’s sure to impress!