Making White Chicken Enchilada Casserole is straightforward! Just follow these simple steps to create this delicious dish:

1. Preheat Oven: Start by preheating your oven to 350°F (175°C).
2. Mix Ingredients: In a large bowl, combine the shredded chicken, cream of chicken soup, diced green chiles, sour cream, garlic powder, onion powder, cumin, and half of the shredded cheese. Mix well until everything is thoroughly combined.
3. Prepare Tortillas: Tear the corn tortillas into bite-sized pieces. This will help distribute them evenly throughout the casserole.
4. Layer Ingredients: In a greased 9×13-inch baking dish, start layering. Begin with half of the tortilla pieces, followed by half of the chicken mixture. Repeat these layers, finishing with the second half of the chicken mixture on top.
5. Add Remaining Cheese: Top the casserole with the remaining shredded cheese, ensuring it’s evenly spread out.
6. Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes or until the cheese is bubbly and golden brown.
7. Cool and Garnish: Once out of the oven, let the casserole cool for 5-10 minutes. Garnish with fresh cilantro if desired.
8. Serve: Slice into portions and serve warm.

These straightforward steps will lead you to an incredible chicken casserole that everyone will rave about.