Preheat oven to 350 degrees. Lightly spray a 9x13-inch baking dish with cooking spray.
Spread half the crushed chips into the bottom of the prepared baking dish.
In a large bowl, stir together the chicken, black beans, corn, 1 cup of the cheese, Ro-tel, green chiles, cream of chicken soup, sour cream and the taco seasoning.
Spread the mixture evenly over the chips in the baking pan.
Bake for 20 minutes. Spread remaining chips evenly over the top, then sprinkle with the remaining cheese. Bake another 5 to 7 minutes or until the cheese is melted. Garnish with cilantro, optional.