I only know fast-food type of places.
Had some Felipes yesterday night, would recommend if you like Mexican food
Likewise, Pinocchios around the area is great for a sicilian pizza
There's also a pizza joint in Beacon Hill that is pretty decent as well - great after strolling-by /window-shopping around the area
Regarding about Tacos, I've been told about this LoneStar taco place that is supposedly good (Roxy's/Root/FoMu-coconut-ice-cream is next door); and there's El Peon for fish tacos which is cool but rly out of the way
Sam Lagrassas (our Katz to NYC) would be the bomb option if you can get around the Downtown area during lunchtime on a weekday - they shut-down by 2:30PM~
http://www.bostonmagazine.com/2012/06/b ... -boston/3/Never been, but you can semi-ball out at Sam's in the Seaport district if you can get there early enough, because nice walk + clothes (LouisBost) + view + ICA