After months of anticipation, Saus opened earlier this month near Faneuil Hall. It is a small cafe dedicated to serving Belgian street food, which translates to frites and liege waffles. While this might not sound super-exciting at first, I really like this restaurant. The service is super-friendly, and the frites and waffles are both very good. The frites have a crisp exterior without being greasy, and they are served showered with a sprinkling of flaky salt. The waffles, which use pearl sugar, are also delicious. While a meal of frites and waffles is not terribly nutritious (or figure-friendly), you should definitely stop by this cafe before wandering around the Quincy Market/aquarium/North End area.
On the other end of spectrum is Marshall's Fenway Farm Stand. This little store, which specializes in gourmet food and produce, is a great alternative to the produce aisle in the supermarket. In the summer and fall, the store has local produce, and it also carries local products, such as ice cream and breads, all year round. However, avoid this place during Red Sox games (or anything else that is happening in the Fenway area) if traffic and seas of pedestrians make you crazy.
I don't typically like sandwiches, but Cutty's in Brookline is the exception to this rule. This tiny sandwich shop offers a glimpse of sandwich nirvana. While others rave about the pork rabe and pork fennel (both available only on Saturdays), my personal favorite is the roast beef 1000, a sandwich that combines crispy shallots, 1000 island dressing, cheddar and roast beef.