Preheat a cast-iron skillet or pizza stone to 450 degrees
Spread sourdough starter on the preheated stone in a thin layer, using the back of a wooden spoon to create a circle
Drizzle with olive oil
Sprinkle with salt
Bake for about 10 minutes, or until the crust pulls away from the skillet or stone
Top with sauce, cheese, and other delicious toppings of your choosing
Bake at 425° for an additional 10 minutes, or until the cheese is good and melted