Original sentence: It is usually sliced thin for use in antipasto or sandwiches such as muffulettas, Italian grinders and subs, and panini as well as some traditional Italian pizza
Edited sentence: It is usually sliced thin for use in antipasto or sandwiches such as muffulettas, Italian grinders and subs, and panini as well as some  "Italian" pizza prepared and sold outside of Italy as it is impossible to find a variety of pizza with coppa (or capocollo) on it in Italy's mainland.Italian mainland pizzas only use prosciutto cotto (cooked ham), prosciutto crudo (cured raw ham), speck (another Italian variety of cured pork typical of the Alpine region) or thinly sliced hot spiced salame as ingredients and the reason is that the large portions of fat in the capocollo would melt in the pizza oven resulting in a disgustingly oily and fatty pizza