Whenever I feel like I want to eat out healthy for once on campus, I usually go to Salad Meister. Ordering is pretty simple, you just choose your ingredients like you would at Chipotle, or you can order a premade option off of the menu. I like their "Hail Caesar" salad, and I sometimes get a cup/bowl of soup, too.
On the other hand, this place is kinda expensive. I also wish they had more premade options, too.