Beefaroni. Canned ravioli. Chunky Soup. These are the mainstays of the diet of the contemporary citizen on the go. Or at least the easy fixin's of the broke and lazy. The best place to pick up these indigestible treats is Fiesta Mart, home of the dollar-can-of-soup and Franco American clearance sales. Look for the routine three-for-a-dollar specials and "family size" aluminum cans the size of Tomahawk missile warheads. Don't forget to pick up some antacids on the way to the checkout counter.