Preheat oven to 350 degrees F and lightly spray a baking sheet with cooking spray. In a large bowl, combine the mozzarella cheese, butter, mayo, Parmesan cheese and olives. Mix well.
2 cups mozzarella cheese, 1/2 cup salted butter, 1/2 cup mayonnaise, 1/4 cup Parmesan cheese, 2 cups olives