Preheat oven to 325° F. In a large saucepan, cook pepper and onion in melted margarine until tender, about 5 minutes. Add soups, Rotel and chicken, stirring until well blended
In a 13 x 9 x 2-inch baking pan, alternately layer tortillas, soup mixture and cheese, repeating for three layers. Bake for 40 minutes or until hot and bubbling.
Makes: 8