Ah, pizza. That essential food we can always count on to bring smiles to the faces of children celebrating birthdays, teenagers playing video games, young adults studying (sure they are—wink wink) into the wee hours of the night, and parents who don’t have to make supper that night. Slather some sauce on dough and add some cheese (usually) and you’re golden! But it can get a lot more complicated than that, what with the many variations and toppings and all. This quiz tests your ‘za know-how or your pie passion.