Cheap but delicious food near Columbus Circle?
Usually I'm the one answering these kinds of questions but now I'll be the one asking. Backstory: fiance's brother started school at NYIT which is by Columbus Circle (61st and Broadway). He's on a very very very limited student budget (and I really mean that). Is there anywhere around there that has decent food options and won't go above, lets say $6 for a sandwich or $10 for a meal that can equate to 2 meals (thinking kinda like Sophie's Cuban or something where the portions are huge)? Any good carts nearby?
Yes I know he can go to Chinatown, and yes I know I can feed him sandwiches myself and have him take them to school with him, but I'm looking for actual places he can drop by to grab a bite in between classes. Thanks!

I just went recently and really liked Local 11 Ten. We also went to B. Matthew's Bakery & Eatery for breakfast, twice - it was really good. The Olde Pink House was really good, better in my opinion than Elizabeth on 37th (which was good as well, and had amazing biscuits, but just wasn't as good as The Olde Pink House)
We also has Leopold's ice cream, which is a local institution apparently, and stopped by Back in the Day Bakery.