In large bowl, mix chicken, cheese, kidney beans, onion, olives and red pepper. In small bowl, stir together mayonnaise, sour cream, chili powder, cumin, basil, salt and pepper. Stir into chicken mixture til coated. Cover and chill. Serve on a bed of shredded lettuce topped with avocado slices, chopped tomato and corn chips. Makes 6 to8 main dish servings.