Cemitas are a type of Mexcian sandwich that originally hails from the State of Puebla, but they’ve taken on a life of their own in New York City. This recipe creates a cemita sandwich as served in the restaurants and taco trucks of New York, in particular along Roosevelt Avenue in Jackson Heights. These are gently warmed sandwiches served on a griddled sesame bun with taco-meat fillings of your choice, avocado, lettuce, tomato, chipotles, refried beans, mayo, and queso Oaxaca, a Mexican string cheese, that’s hand-shredded into hairlike strands. Papalo, a floral Mexican herb, adds its own special flavor. This is a cemita con todo—with the works.