1. Preheat oven to 350 degrees
2. Pour the bag of the tortilla chips onto the cookie sheet
3. Evenly spread out the chicken on top of the chips
4. Sprinkle the black beans and corn all over the chicken
5. Fully cover the chicken, beans and corn with the cheese
6. Sprinkle the onion and tomatoes and cilantro on top of the cheese
7. Place into the oven for about 10 minutes or until the cheese is melted
8. Once melted, pull out of the oven and let cool for 2 minutes.