In a large mixing bowl, combine the cooked shredded chicken, sliced bell peppers, sliced onion, black beans, corn, salsa, chili powder, cumin, garlic powder, and paprika. Mix well until all ingredients are evenly coated with the spices.
In a 9x13 inch casserole dish, layer half of the tortilla strips on the bottom of the dish.
Pour half of the chicken and vegetable mixture over the tortilla layer, spreading it evenly. Top with half of the shredded cheese.
Repeat the layers with the remaining tortilla strips, chicken mixture, and shredded cheese, finishing with a generous layer of cheese on top.
Cover the casserole dish with aluminum foil and bake in the preheated oven for 25 minutes.
Remove the foil and bake for an additional 10-15 minutes, until the cheese is bubbly and slightly golden.
Once done, let the casserole sit for 5-10 minutes before serving to set up a bit.
Garnish with chopped fresh cilantro and serve with sour cream on the side.
Notes
Let the casserole sit for a few minutes before serving to allow it to set.