My go-to sandwich is the Torta. Preferably from a roadside taco wagon with nothing in English on the menu. The key is the bollilo bread. I usually order chorizo for the meat. Then you've got avocado, shredded lettuce tossed with mayo, onion, tomato, jalapeno, thin queso slices and HOT sauce on the side. It can't get any better. About the size of a deflated soccer ball.