Start with the grinder slaw by whisking together: mayonnaise, red wine vinegar, grated Parmesan cheese, fresh garlic, Italian seasoning, red pepper flakes, salt and pepper to taste, and mustard.
Then add: thinly sliced red onion, sliced pepperoncini, and shredded romaine lettuce.
Toss everything together until well coated.
Slice a French loaf in half and layer one side with sliced turkey, provolone cheese, heirloom tomato slices, and crispy bacon.
Hollow out the other half of the loaf and pile it high with the grinder slaw.
Close it up, slice into four pieces.
