Parmesan cheese, freshly grated
Salt & pepper to taste
Slice squash and onion thinly. Chop preferred amount of rosemary. Toss first 3 ingredients with some olive oil and bake in dish at 400 degrees for 30 minutes.
Spread olive oil on pizza crust and then spread on squash mixture. Bake according to crust package instructions.
Grate fresh parmesan on pizza and serve.