The third ingredient (Pizza toppings) is up to your taste-sauce, cheese, meat, veg, etc.
I preheat the oven to 500 degrees.
Cover the bottom of your cast iron with a thin layer of oil. Work your dough until it fills the cast iron. You can go straight to the oven now or let it rise a bit in the cast iron if you want.
Poke some holes in the dough with a fork or knife to prevent bubbles from forming.
I like to brush the top of the dough with a little more olive oil and put it in the oven for a few to firm up the dough. You can do this while the oven is heating up.
Remove it from the oven, dress your pizza any way you like, and return it to the 500-degree oven.
Keep an eye on it but it should take about 10-15 minutes to cook. I also like to hit the broiler for a few minutes at the end to toast up my pepperoni and the cheese