I'm trying to make plans with some friends for a casual lunch and a visit to the South End Open Market on Sunday. We're going to be 4 adults and an 11-month-old baby, so I need someplace that's kid-appropriate but a kids' menu isn't a requirement. One of my friends is on a pretty strict diet (gluten-free, dairy-free, not sure what else) and needs to be able to get something basic like a salad or plain grilled chicken.
The market is at 460 Harrison Ave. I don't remember there being much by way of restaurants right around there. A 10-15 minute walk for lunch is probably cool. Any ideas for good places to go that will be open on Sunday? Table service isn't a requirement, but someplace to sit down would be good.