I think that FIB's Italian combo (a spicy Italian sausage topped with roast beef, provolone, and peppers) is my favorite thing to eat in Madison. It probably has about 20,000 calories, but it's beyond amazing. The guy who runs the stand is extremely friendly. Service is fast and they always make a point of opening the container before giving it to you to make sure the order is right. I highly recommend this cart.