High Quality Content by WIKIPEDIA articles! Pancho`s Mexican Buffet is a chain of Tex-Mex restaurants (24 as of 2009) in the United States. The bulk of the restaurants are in Texas; a few restaurants are also located in Arizona, New Mexico, Oklahoma, Louisiana and Mississippi. Pancho`s main offering is an all you care to eat buffet, though unlike many other such buffets additional food is brought by waitstaff rather than self-served. Pancho`s also offers takeout service.