Bien Venue a MDA Thibaud!
Boiled eggs, chicken salad, tuna salad, roasted chicken, fruit and cheese (if you eat dairy), lots of options if you get creative. My personal favorite: Mark's Big Ass Salad - check out the video for the recipe on the home page.
There's a thread here on food for college students, can't seem to find it now. Will post it if I can find it.