Hi, I am a vegetarian and vegetarians can find protein in a bunch of food sources, some might surprise you too! Grains, nuts, beans, vegetables, tofu and other meat substitutes just to name a few. Here are a few sites that I can think of that might help you see the other foods that give you protein!
Vegetarians in Paradise/Vegan Protein Basics/Vegetarian Protein Sources / Charts Vegetarian Diet: Vegetarian Protein, Myth and Reality, Savvy Vegetarian Vegetarian Protein Sources - Getting Enough Protein - Protein for Vegetarians - Vegan Protein Sources - Where to get protein on a vegetarian diet
Also I suggest that you look at your local Library for information on vegetarian diets, I found a wealth of info from the books I came across!