Hmm, I don't see any veggies on your list. For saving space and preparation keep some bags of salad on hand and a good bottle of LC dressing (I like Marie's).
Pre-cut celery sticks. Broccoli and cauliflower florettes.
Do you have a microwave? Frozen veggies (broccoli, spinach, etc)
Fresh deli meats and cheeses. You can roll up turkey and cheese with some mayo and lettuce or sprouts. Or roast beef around string cheese.

Hmmm... what else? I feel your pain, when I was living in a dorm I ate chicken nuggets and Ramen. Ugh. Good luck!