We will be visiting Boston in February and staying in the Back Bay area. We'll be at least 4 adults and one 6 year old child. We're looking for a casual, comfortable place to eat lunch that serves solidly good food. It doesn't have to be gourmet or fancy, but we want it to be good quality, and we want a nice, cozy atmosphere. Any suggestions? The back bay area would be most convenient, but if you can think of a great place in another neighborhood, please share. Thanks a lot for reading!