Tuna, Chicken,Turkey, Sausage, Bison (leaner than beef and very tasty), ham. If worse comes to worse i take whey protein shakes once in a blue moon! As a teenager my main protein has been fresh lunch meat (unprocessed) from my local grocery store (Central market); mostly turkey and chicken.
sorry i didn't see that she doesn't eat other meats..
Try nuts, tofu( if your willing … i don't eat it), greek yogurt,