One of the favorite lunch meals for children at Dakota Boys and Girls Ranch is the "walking taco." For those of you unfamiliar with the term, a walking taco starts with a personal-sized bag of tortilla chips. You crunch the bag to break the chips into small pieces, then open the bag and add taco meat, cheese, tomatoes, lettuce, salsa, and possibly sour cream or guacamole. The gastronomical delight is eaten right out of the bag with a fork. Sort of a taco salad, but funkier. "Walking taco" is a fun name.…