Help! gained weight in college!

Hey guys! I'm a freshmen in college who has gained 7 pounds >.< it makes me feel really insecure. I walk everyday, and pretty far (my campus is huge) and go to the gym at least three times a week, so I don't understand what I'm doing wrong. I have come to the conclusion that the dining hall food is to blame, but I won't have a kitchen until next year so I'm stuck with the food for now.. can some of you healthy people, especially ones who know what ding halls are like, give me some tips to eating? I'm a vegetarian By the way. thanks!
Help! gained weight in college!
Post Opinion