This Mexican sandwich, with its 11 toppings that include smoked pork, ham, sliced hot dogs, and head cheese, weighs in at nearly two pounds. But when you bite through the soft roll into layers of melting cheese, fried egg, avocado, jalapeños, and those smoky meats, you realize why the owners, who brought their shop to Speedway from Chicago in 2008, knew their outsize sandwiches would be as popular as they are in Mexico City. ($7.25)