i'm also a vegetarian (and was actually vegan before coming to tulane). i lived on brown rice, kale, broccoli, miso soup, fresh fruit, oatmeal, etc at home. coming here has been difficult, but i've finally scoped everything out and found stuff i will eat.
it is hard to eat healthy here, but it can be done. at bruff, there is always the salad bar and they have some sort of vegetarian soup most days. the fruit is usually pretty fresh and yummy. at the pasta bar, it is easy to have them make you whole wheat pasta with veggies and marinara. the vegetarian line is usually gross, in my opinion, although i'll hit it up every once in a while.
at the LBC, your daughter could easily eat at einsteins, panda express, quiznos, baha grill, and the greek place.
another nice thing is that at bruff to go they usually have a vegan lunch entree that is generally pretty good.
let me know if you have any other questions!!