Here's the quick way I did it (completely made up by me by trail and error, not from any recipe):
Prep work...
-Take half pound of
dough out of refrigerator 2 hours before starting to cook and let it rise under some lose plastic wrap
-After two hours, put a tiny bit of
olive oil on the counter (just so it doesn't stick and rip) and carefully spread out
dough into a circle
slightly larger than the size of the cast iron pan (its ok if it's really thin, so long as there's no holes, because it'll rise in the oven)
-Remove casing from
two Italian sausages
-Thinly slice some
white onion and
green pepper
-melt a little
butter in pan to brush on crust
-Set aside about 1/2 cup of
pasta/pizza sauce and try to find
whole milk, low moisture, mozzarella cheese
When ready...
-Preheat oven to 500F
-Preheat cast iron pan on stove at about medium heat
-put a little
vegetable oil in the cast iron pan and cook
Italian sausage until fully cooked and broken up into little chunks
-remove
Italian sausage from pan but leave all the leftover oil in the pan (helps crisp up the bottom of the pizza)
-place
dough in pan (careful since it should still be hot) and spread it across the entire bottom
-add
sauce, cheese, sausage, onions, and
peppers, leaving half an inch of crust on edges
-brush half of melted
butter on edges
-place in oven until top is golden brown (like in my picture) and if it bubbles up anywhere just pop it with a knife
-remove from oven and brush remaining
butter on bare crust
-wait a few minutes for it to cool and then carefully transfer to a cutting board