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Characterized by its whopping size, when compared to other types of burrito, mission burrito is made up of a tortilla filled with Mexican rice, beans, either carne asada (grilled and sliced beef), al pastor (spit-grilled pork), or offal, like beef tongue and beef brain, onions, cilantro, and salsa, either mild, just tomatoes and onions, or hot, with added jalapeños. The addition of sour cream, guacamole, and cheese turns the regular mission burrito into a "super" burrito. When done assembling the burrito, it is crucial to wrap it in tin foil as that helps hold it together. Although perfect on its own, it is a common practice to top the burrito with salsa in between each bite.