Nachos is a Tex-Mex dish from northern Mexico that consists of heated tortilla chips or totopos covered with melted cheese (or a cheese-based sauce), often served as a snack or appetizer. More elaborate versions of the dish include other ingredients, and may be substantial enough to serve as a main dish. Ignacio "El Nacho" Anaya is credited for creating the dish in 1943; the original nachos consisted of fried corn tortilla chips covered with melted cheese and sliced jalapeño peppers.