Creating Salsa Verde Chicken Casserole is a breeze if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Mix Chicken and Salsa: In a large bowl, combine the shredded chicken and salsa verde. Mix well to coat the chicken evenly.
3. Prepare the Creamy Mixture: In another bowl, mix together the sour cream, garlic powder, onion powder, cumin, chili powder, salt, and pepper until smooth.
4. Combine Ingredients: Add the creamy mixture to the chicken and salsa verde. Stir in the corn and black beans until well incorporated.
5. Layer the Casserole: Spread a thin layer of the chicken mixture in the bottom of a greased casserole dish. Layer some tortilla strips on top, followed by a layer of cheese.
6. Repeat Layers: Continue layering until all ingredients are used, finishing with a layer of cheese on top.
7. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes or until the cheese is bubbly and golden.
8. Cool and Serve: Once done, remove the casserole from the oven and let it cool for a few minutes. Garnish with fresh cilantro if desired.

These steps will guide you in creating this amazing casserole effortlessly, ensuring you achieve a delicious result every time.