In large pot add sour cream, soup, tomatoes, chilies, and chicken. Let simmer 10-15 minutes. Layer baking dish with smashed Doritos, then pour chicken mixture on top.
Next spread half an 8 oz. package of cheese, then add cans of beans, and top with remainder of cheese.
Bake at 350 degrees for 20-30 minutes until cheese is melted.
Serve with additional Doritos instead of a fork.
Submitted by: Holly Gertz