Flavorful fillings on delectable bread make Cosí a downtown lunch hot spot. This location, right on the Freedom Trail, makes a delicious refueling stop. Italian flatbread baked fresh all day -- so tasty that it's even good plain -- gets split open and filled with your choice of meat, fish, vegetables, cheese, and spreads. The more fillings you choose, the more you pay; the total can really climb, so don't go too wild if you're on a budget. Tandoori chicken with caramelized onions is sensational, as is smoked salmon with spinach-artichoke spread.

Other branches are at 14 Milk St. (tel. 617/426-7565), near Downtown Crossing, and 133 Federal St. (tel. 617/292-2674), which has patio seating in warm weather.