The tortilla (Spanish pronunciation: [torti?a]) is a flatbread made from corn or wheat. The word "tortilla" originally comes from the Spanish word "torta", which means "round cake". When Spanish explorers discovered an unleavened flatbread made by the Aztecs, they called it "tortilla" (little torta). Tortillas have been used for many centuries, particularly in Mexico and more recently in the United States. The tortilla is consumed all year round. Tortillas are most commonly prepared with meat to make dishes such as tacos, burritos, and enchiladas. Tortillas have increased in popularity in other countries, especially in the United States and Europe as Mexican cuisine has been introduced to those countries.