There are several types of restaurants including independent restaurants, chains, franchises, fine dining, casual dining, and quick service/fast food restaurants. Quick service restaurants have limited menus and guests help defray labor costs. Popular quick service restaurants include hamburger chains like McDonald's and Ray Kroc's restaurants, pizza chains like Pizza Hut, Domino's, Papa Johns, and Little Caesars, and chicken restaurants led by KFC. Ethnic restaurants, especially Mexican restaurants, are one of the fastest growing segments.