For decades, mobile food in New York meant food carts. Traditionally operated by immigrants, first Eastern European and Italian, then Greek and today generally Middle Eastern, the carts served basic fare: hot dogs, falafel, kebabs and knishes. Later, more ambitious proprietors added cheeseburgers or cheesesteaks, but the choices were hardly haute cuisine. Many credit failed Le Bernardin extern, Roy Choi, with taking food carts to the next level. In 2008, the Los Angeles chef debuted not a cart, but a truck, serving Korean style tacos.

Photo courtesy The New York Times