A lampredotto sandwich from one of Florence's food carts is a local-favorite experience you shouldn't miss. The crusty roll is stuffed with chopped beef stomach, dressed with fresh salsa verde and pepper sauce, then dipped into the vat of broth. There are a few tripe stands scattered throughout the city and the Trippaio di San Frediano is a solid choice. You can find it across the river in the Oltrarno neighborhood. Next to the kiosk, several tables and stools provide excellent people-watching as you enjoy your lunch (lampredotto is pretty much a lunchtime-only offering) with a plastic cup of wine.