Preheat oven to 350 degrees. In a large mixing bowl, combine Ro-Tel, chopped chicken, sour cream, cummin, slat and pepper; mix well. You can add some shredded cheesse to this.
Place tortilla chips in the bottom of a 9 X 13 baking pan. Spread the mxture onto the tortillas and top. Bake for 25 minutes and then shredded cheese to top, continue baking for the remander of the time. Let cool 10 minutes before serving.