The cheese is a combination of 80% part-skim-milk mozzarella and a 10-month-aged shredded Parmesan. What Type of Pizzas Does Costco Have? The pepperoni version of Costco pizza scales back on the ...

Of that cheese, 80% is "part-skim-milk" mozzarella. The remaining 20% of the blend is "10 month-aged shredded parmesan." Some things that aren't included in Costco's pizzas are lard, trans fats ...