Topped with fresh salsa and filled with huitlacoche, tomatoes, corn and melted white cheddar, this quesadilla is a time-tested nutritious Mexican dish. Huitlacoche is a traditional ingredient in many Mexican dishes and is often used as a meat replacement. Huitlacoche quesadillas are by far the most popular form of consumption of huitlacoche and are available all over central and southern Mexico from the griddles of street carts, restaurants, and municipal markets.