In a large bowl, whisk together mayonnaise, red wine vinegar, garlic powder, oregano, salt, and pepper until smooth and creamy.

Stir in the shredded lettuce, sliced red onion, and banana peppers into the dressing, mixing until the veggies are well coated.

Slice the sub rolls in half lengthwise without cutting all the way through. Layer each roll generously with salami, pepperoni, and turkey in an overlapping fashion.

Place a slice of provolone cheese over the meat on each sub roll, ensuring an even coverage.

Preheat your oven's broiler to high.

Place the assembled sandwiches on a baking sheet and broil for 2–3 minutes, keeping a close eye on them.

Remove the sandwiches from the oven and add fresh tomato slices on top, sprinkling them with salt and pepper.

Top it off with the prepared grinder salad, ensuring an even distribution of the crunchy veggies.

If desired, sprinkle grated parmesan cheese on top before closing the sandwich. Cut each sandwich in half for easy serving.