Preheat your oven to 375°F and lightly grease a baking dish.
In a large bowl, mix the cream of chicken soup, sour cream, diced tomatoes with green chilies, chili powder, cumin, garlic powder, salt, and black pepper.
Stir in the shredded chicken, black beans, corn, diced onion, and half of the shredded cheese.
Spread half of the crushed tortilla chips in the bottom of the prepared baking dish.
Spoon the chicken mixture evenly over the chips.
Top with the remaining crushed chips and the rest of the shredded cheese.
Bake uncovered for 25–30 minutes, until the cheese is melted and bubbly.
Let it rest for about 5 minutes before serving.
Top with fresh cilantro, green onions, or jalapeños if you like extra flavor.