Three Costco
BBQ chickens, stripped of meat. 50 corn tortillas (warm on
griddle or in oven and keep in tortilla warmer--the club has a few). Shredded mexican cheese, salsa, shredded lettuce, sour cream, pickled jalapenos, etc.
Once you strip the chickens, warm the tortillas and prepare the garnishes, just put it all out there and let folks help themselves. This is a cheap (~$50) snack that has always paid for itself.