My version of this low fat single sized pizza uses one Weight Watcher's brand Pita Bread, pizza sauce, spinach, mushrooms, tomatoes, and olives, topped with fat-free mozza cheese.
The more veggies you pile on it, the fuller you will be, but keep the cheese amount to an ounce if you truly want it to be low fat. Yummy and filling, and if you are following the Points Plus system, the point count is 4 per pizza. Not a bad lunch for the waistline! I follow mine up with a cup of fruit salad or a Yoplait 0 yogurt.