I make pizza for my little one pretty often - I'm not crazy about takeout (the price!). Any high fiber/low carb tortilla, pita, or flatout light can make a 300 calorie (or less!) personal pizza. Some of these are HUGE too!
The entire household can top their own with whatever they want. It's so fun and they come out great and perfectly portioned. Just bake them at 375 for about 6-7 minutes first to crisp, then top with sauce, cheese, and toppings and bake until the cheese is melted.
I've made mine with marinara, BBQ chicken, buffalo chicken, Thai chicken, taco pizza, etc. It's a great weeknight meal for the whole family.