Roman-Style Thin-Crust Pizzas

Preheat oven to 450 degrees, with rack in lower third lined with a pizza stone or baking sheet. Divide dough in half. On a piece of parchment dusted with semolina, roll one piece of dough into an approximately 9-by-15-inch oval. Season with salt and pepper. Transfer on parchment to a baking sheet or pizza peel. Spread half of alfredo sauce over dough, leaving a 1/2-inch border.

Preheat oven to 450 degrees, with rack in lower third lined with a pizza stone or baking sheet. Divide dough in half. On a piece of parchment dusted with semolina, roll one piece of dough into an approximately 9-by-15-inch oval. Season with salt and pepper. Transfer on parchment to a baking sheet or pizza peel. Spread half of alfredo sauce over dough, leaving a 1/2-inch border.

Ricotta-Peas-Prosciutto: Dollop half of ricotta, in small spoonfuls, evenly over dough, leaving a 1/2-inch border. Top evenly with half of peas and lightly drizzle with oil. Slide pizza (still on parchment) onto stone. Bake until crust is golden brown in places and crisp, 8 to 10 minutes. Transfer to a board; top with half of prosciutto or arugula, if using. Slice and serve. Repeat with remaining dough and toppings.

Spinach-Parmigiano-Pepper Flakes: Top evenly with half of spinach, cheese, and pepper flakes; lightly drizzle with oil. Slide pizza (still on parchment) onto stone. Bake until crust is golden brown in places and crisp, 8 to 10 minutes. Transfer to a board; top with half of prosciutto or arugula, if using. Slice and serve. Repeat with remaining dough and toppings.

Potato-Red Onion-Arugula: Top evenly with half of potatoes, then half of onion and cheese. Slide pizza (still on parchment) onto stone. Bake until crust is golden brown in places and crisp, 8 to 10 minutes. Transfer to a board; top with half of prosciutto or arugula, if using. Slice and serve. Repeat with remaining dough and toppings.