8 jumbo black olives, pitted 8 pitted green olives 2 tablespoons chopped celery 2 tablespoons chopped red onion 2 cloves chopped garlic 6 leaves chopped fresh basil 1 tablespoon chopped fresh parsley 2 tablespoons olive oil 1/2 teaspoon dried oregano salt and freshly ground black pepper to taste 1 (16 ounce) package ready made pizza crust | 1 tablespoon olive oil 1/2 teaspoon garlic powder to taste salt to taste 2 ounces shredded mozzarella cheese 2 ounces shredded provolone cheese 2 ounces grated Parmesan cheese 2 ounces thinly sliced hard salami, cut into strips 2 ounces thinly sliced mortadella, cut into strips 4 ounces thinly sliced prosciutto, cut into strips |