I know this is probably a little too late for last night, but I love pizza too. Here's a couple of options:
Definitely go for the pita-pizza! Using low-fat or made-from-skim cheese, with a low-calorie pizza or tomato sauce and veggie stuffings are great for keeping on track, and can end up really feeling. Try spreading your pizza sauce on the inside of the pita, then stuff with baby spinach, fresh mushrooms, slices of cherry tomato, and any other veggie you like. Top with the cheese and pop in the microwave or skillet to cook. Only takes a couple of minutes and you've got yourself a healthy alternative.
If you like regular, tomato-cheese-and-crust pizzas, try mini-serving pizzas. Using whole wheat tortillas (or one matzo, if you're Jewish), bake at a low temperature until they're just starting to crisp. Top with your favorite toppings (go easy on the sauce if you use the matzo - holes!) and serve. Matzo pizza is really good!