Fast food is not part of the vocabulary of the French. Well, foodie French that is. Sure there are a couple fast food restaurants, but no self respecting Frenchman (read: person) frequents them. Except Cosi. Cosi is a small sandwich shop in St Germain, on Rue de Seine. This place serves the most delectable fast food in town. Warm crusty focaccia bread is made on-site in a wood-burning oven. You can direct them to build your own sandwich or you can pick from their wonderful menu: Rare roast beef with cheddar, tandoori turkey with tomato confit or cold chicken curry salad. This is delicious food fast.