I first make a batch of bread dough in my bread maker.
Dice the pumpkin into bite sized pieces, and place in a roasting pan with one purple/red onoin cut into strips. Spray with cooking spray and bake until the pumpkin is cooked and the onion soft. I alternatively microwave the pumpkin and caramelise the onion in a small pan with some butter.
Roll out the dough into two pizza bases. I make rectangular pizzas because the topping stays on better for the kids. I add the toppings in this order - a thin layer of mozzarella cheese (to act as glue, The pumpkin/onion mix. At this point I just top the kid's pizza with loads more mozzarella. Our more sophisticated pizza also gets fresh oregano or sage leaves, roughly chopped macadamia nuts and a liberal topping of fetta cheese.
I cook it for about 25 minutes on the lower shelf of a very hot oven.
It's very simple to make, and hugely popular in our little family!