There are some fantastic eats in that area....my daughter just graduated NU in December.....great choice fantastic city... she came out employed through her co-op job.
We did a lot of eating in the south end one of our favs Giacomo's on Columbus ave...the oysters at B&G not bad either...good luck
Symphony Sushi http://www.symphonysushi.com has never disappointed us, especially the lunch menu.
There's another place, Betty's Wok and Noodle. http://www.bettyswokandnoodle.com. I'm really conflicted on it, I've never really cared for it, but a lot of people I used to work with really enjoyed it.
And as far as college hang outs go, the quality of food at Connor Larkins is much better than Our House East. Lunch at Connor Larkins is a decent deal.
Symphony 8 http://www.symphony8boston.com this was rather newish when I went for my first time last summer. And I only had dessert and coffee. You might want to search these boards to see if there's a proper review for it.
But these are places right within walking distance of Huntington and Gainsborough.
45 Gainsborough St, Boston, MA 02115
Our House East
52 Gainsborough St, Boston, MA 02115
8 Westland Ave., Boston, MA 02115