The Killa Dogz Chicago hot dog, front, features tomato, pepperoncini, onions, and relish. Two of their favorite items are the Mac-N-Cheese dog, right, which is a hot dog loaded with baked mac and cheese and topped with bacon, and the Philly hot dog, back, which is topped with ribeye steak, peppers, onions, and cheese sauce. (Kevin Richardson/Staff)
