So I have some really PICKY kids. My four year old won't touch it if it's green, so we have to be creative. My husband LOVES making pizza and anything from scratch.
We bought a box of JIFFY pizza dough, which was fabulous! It was so flaky and light! And under 3 bucks, plus only adding WATER!
Then, we get any pizza sauce and we hide a variety of veggies inside. For example: spinich, green onions, onions, tomatoes, squash etc..
After the pizza dough is ready and on a greased pizza pan, (By the way, we use a cast iron skillet), my husband put the zucchinis down and then put the sauce and the cheese to hide them. Then we simply bake the pizza and.. the rest is history.
My four year old had 3 pieces herself!