This traditional English cheese and onion pie is a savory, homemade recipe filled with a rich blend of ricotta, mozzarella, cheddar, and parmesan. Inspired by British classics and Italian favorites like torta rustica, Torta Pasqualina, pizza rustica, and Sicilian ricotta pie, it’s easy to make and full of flavor. Learn how to make cheese and onion pie for Easter or any special occasion.