A quesadilla is a Mexican dish consisting of a tortilla that is filled primarily with cheese, and sometimes meats, spices, and other fillings such as chocolate, and then cooked on a griddle or stove. Traditionally, a corn tortilla is used, but it can also be made with a flour tortilla.

Mexican cuisine consists of the cooking cuisines and traditions of the modern country of Mexico. Its earliest roots lie in Mesoamerican cuisine. Its ingredients and methods begin with the first agricultural communities such as the Olmec and Maya who domesticated maize, created the standard process of nixtamalization, and established their foodways. Successive waves of other Mesoamerican groups brought with them their cooking methods. These included: the Teotihuacanos, Toltec, Huastec, Zapotec, Mixtec, Otomi, Purépecha, Totonac, Mazatec, Mazahua, and Nahua. With the Mexica formation of the multi-ethnic Triple Alliance, culinary foodways became infused.