About two summers ago, I went all out on a fitness run. I ran a mile everyday, biked five miles, and did some pushups and crunches. Along with this I ate about 6-7 small meals a day and drank 2 liters of water everyday. This led to an AMAZING weight loss. The problem is, as soon as school started, I couldn't really keep up with the routine. Since then I gained a bit of weight and I figure there's no better time to get in shape than freshman year of college.
I got gym membership and it won't be a problem getting myself to go. The problem is my diet. Since I reside in dorms, I don't have a kitchen or anything I can cook with. I can't always make it to lunch or dinner in the commons and the always open restaurants on campus are far from healthy. There's a convenience store right next to the dorms that I can get stuff in. So here's my question: What should I eat to give myself all the necessary nutrients and calories to lose weight and gain muscle that would be available in a convenience store and not require cooking?