actually if you can get them to put it on whole grain crust most pizzas are relatively healthy, they place i go i get a large pizza on whole grain, with chicken and sundried tomatoes. Now if they only put low fat cheese on it : )
Do the whole wheat pizza thing with extra veggies and chicken. And if they don't have low fat cheese, tell them to go light on the stuff. Pizza can actually be a pretty healthy meal for you if you eat it this way.