Preheat the oven to 350˚F.

Cut the Hawaiian rolls horizontally and lay the bottoms in a baking dish.

Layer the provolone cheese on the bread, then add the ham, pepperoni, and salami on top. Place the tops back on the rolls and cut through the sandwiches between each roll.

Combine the butter, parmesan, garlic powder, and salt. Spread over the tops of the slider sandwiches. Bake for 15-20 minutes or until the cheese is melted and the tops are golden brown.

While the sandwiches bake, make the grinder salad by whisking together the mayonnaise, red wine vinegar, Italian seasoning, salt, pepper, and garlic powder to form a dressing.

Toss the lettuce, tomatoes, and pepperoncini peppers together with the dressing.

Once the sandwiches are done, remove the tops, add the grinder salad, and put the tops back on. Serve immediately.