01 - Turn on your oven broiler to prepare for toasting.
02 - Place split rolls on a baking sheet. Layer provolone and mozzarella cheese on each roll.
03 - Place under broiler for 1–2 minutes until cheese melts and bread is lightly toasted. Remove from oven.
04 - Distribute salami, ham, mortadella or turkey, and capicola evenly onto bottom half of each roll.
05 - In a large mixing bowl, toss together lettuce, red onion, pepperoncini, cherry tomatoes, and black olives.
06 - Whisk mayonnaise, red wine vinegar, olive oil, oregano, garlic powder, salt, and black pepper until smooth.
07 - Pour dressing over vegetable mixture and toss until thoroughly coated.
08 - Mound dressed salad generously over the layered meats on each roll.
09 - Sprinkle with cracked black pepper and grated Parmesan cheese, if desired.
10 - Place top half of roll on each sandwich, press gently, and serve immediately.