Join Claire Saffitz in the Bon Appétit Test Kitchen as she makes cast-iron skillet pizza with fennel and sausage. Pizza dough is usually sold as a 1-lb. ball. You only need 12 oz. for this cast-iron pizza recipe. We used a 10\" pan, so if yours is bigger, use a bit more dough. Cooking sausage in the pan before adding the dough infuses the crust with porky flavor.