Comella's is a wonderful local chain serving Italian food that's probably more authentic than Domino's. Their cheese and pepperoni pizzas are very good, as well as the Rocco's Italian sub, Fettuccine Alfredo, the cannolis, the tiramisu, and probably everything else. This place is awesome. Prices are great, and portions are huge.
There is only one location in Boston proper (West Roxbury), but there are quite a few locations scattered elsewhere (in Newton, Melrose, Concord, Winchester, Westwood, Natick, Wellesley, Belmont, and Hingham). I have had Comella's countless times, from a few of their locations, and I've never had a bad experience. 9/10.