While vegetable pizzas are more nutritious than meat pizzas, especially if you get a pizza with a whole-wheat crust, they can still contain a lot of calories. Choose a thin-crust pizza to save calories, or make your pizza at home for more control over the ingredients -- and thus the calories of the resulting pizza.
The typical vegetables used on pizza contain very few calories, so the calories in a slice of veggie pizza are only slightly higher than those in cheese pizza. Half a cup of sliced mushrooms adds 8 calories, a tablespoon of chopped onions has 4 calories and a tablespoon of chopped green peppers has 8 calories. A slice from a 14-inch thin-crust cheese pizza has 230 calories. Choosing a regular crust will increase the calories to 285 per slice, while opting for a thick crust increases the calories to 312. This is still fewer calories than a slice of regular-crust pepperoni pizza, with 313 calories, or sausage pizza, with 325 calories.
Homemade and Frozen Pizzas
The calories in a serving of frozen vegetable pizza, which is usually about one-third of the pizza, range from about 240 to 340, depending on the brand of pizza. A homemade vegetable pizza with a whole-wheat crust, zucchini, peppers, mushrooms and reduced-fat feta cheese has 185 calories for one-fourth of an 8-inch pie, and a pizza with mushrooms, peppers and part-skim mozzarella that has 345 calories for one-sixth of a pie made with a 16-ounce Italian-bread-style pizza shell.