Pizza estimated that annual production of pizza cheese was in the U.S. and in Europe. Authentic Neapolitan pizza ("pizza napoletana") is made with San Marzano tomatoes, grown on the volcanic plains south of Mount Vesuvius, and mozzarella di bufala Campana, made with milk from water buffalo raised in the marshlands of Campania and Lazio. This mozzarella is protected with its own European protected designation of origin. Other traditional pizzas include "pizza alla marinara", which is topped with marinara sauce and is supposedly the most ancient tomato-topped pizza, pizza capricciosa, which is prepared with mozzarella cheese, baked ham, mushroom, artichoke and tomato,
Mozzarella buffalo, raised in designated areas of Campania, Lazio, Apulia, Molise. Unlike other mozzarellas—50% of whose production derives from non-Italian and often semi-coagulated milk—it holds the status of a protected designation of origin (PDO 1996) under the European Union "Fior di latte", is made from fresh pasteurized or unpasteurized cow's milk and hot water buffalo milk, which greatly lowers its cost. Outside the EU, "mozzarella" not clearly labeled as deriving from water buffalo can be presumed to derive from cow milk. "Mozzarella affumicata" means smoked mozzarella. Mozzarella of sheep milk, sometimes called "mozzarella pecorella", is typical of Sardinia, Abruzzo and Lazio,