Tacos are a beloved Mexican dish consisting of a tortilla filled with various ingredients, typically including a protein such as beef, chicken, pork, fish, or tofu, along with toppings like lettuce, cheese, salsa, guacamole, and sour cream. They are versatile and customizable, allowing for a wide range of flavors and combinations to suit individual preferences. Tacos can be served soft or hard-shell, and they are enjoyed worldwide for their delicious taste and convenience.