Creating Chicken Stacked Enchiladas is straightforward. Follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Sauté Vegetables: In a large skillet, heat olive oil over medium heat. Add diced onions, zucchini, and bell peppers. Sauté until the vegetables are tender, about 5-7 minutes.
3. Season Chicken: In a bowl, combine shredded chicken, black beans, corn, garlic powder, cumin, salt, and pepper. Gently mix to combine all ingredients.
4. Layer Ingredients: In a 9×13-inch baking dish, spread ½ cup of enchilada sauce on the bottom. Place 3 tortillas on top of the sauce. Spread a portion of the chicken mixture over the tortillas, followed by some sautéed vegetables and a sprinkle of cheese.
5. Repeat Layers: Repeat the layering process—sauce, tortillas, chicken mixture, vegetables, and cheese—until all ingredients are used, finishing with a layer of tortillas topped with enchilada sauce and cheese.
6. Bake Enchiladas: Cover the baking dish with foil and bake in the preheated oven for 20 minutes. Remove the foil and bake for an additional 10 minutes until the cheese is bubbly and golden.
7. Cool Slightly: Allow to cool for a few minutes before serving to help the layers settle.
8. Garnish: Top with fresh cilantro or any additional toppings of choice.
9. Serve: Cut into squares and serve warm. Accompany with sour cream or guacamole, if desired.

By following these simple steps, you can create delicious Chicken Stacked Enchiladas that are sure to impress!