"Trapizzino is a small street food chain with locations throughout Italy (and an outpost in New York). The concept is based on the trapizzino, a combination of the popular triangular tramezzino sandwich with long, slowly leavened pizza dough, invented by pizzaiolo Stefano Callegari in 2009. Callegari fills his tricornered creations with Roman classics like oxtail simmered with tomato and celery, chicken cacciatore, and tripe cooked with tomato, each going for just 5 euros or less. Most locations provide a quick, affordable meal, but the branch in Trastevere also offers table service and a full bar highlighting wines and beers from across Lazio." - Katie Parla