After a couple of days in Mexico City, once you’re well-rested and adjusted to the altitude, why not try a little street eating? After all, some locals do it every day, and the techniques vendors use have been in place for centuries, if not millennia. A good jumping-off point is the sometimes-grilled sandwich known as a torta. The ingredient combinations are endless, ranging from egg, shredded chicken, and pork loin to the Mexican piece of breaded beef known as a milanesa—and the list goes on. String cheese and chipotles or pickled jalapeños add a lot of flavor, but do it your way. A lot of customers at a stall is good sign both in terms of taste and cleanliness. With a torta under your belt, start thinking about tacos. Or that spot with the caldo de pollo chicken soup, perfect for all kinds of add-ins. Soon enough you’re a seasoned streeter.