In a large bowl, combine rapid rise yeast and very hot water; let sit 2–3 minutes until slightly foamy.
Stir in olive oil and salt. Add flour and mix until a soft dough forms; knead 3–5 minutes until smooth. Cover and let rise at least 30 minutes (no more than 6 hours), or until doubled.
Preheat oven (or pizza oven) to 450–500°F.
In a bowl, whisk together mayonnaise, vinegar, Italian seasoning, garlic powder, red pepper flakes, parmesan, and chopped pepperoncini. Add lettuce, tomatoes, and red onion; toss and chill.
Divide dough into 4 equal portions and roll each into a ¼-inch thick oval. Lightly drizzle each with olive oil and sprinkle with a little parmesan, then fold over gently.
Bake 3-4 minutes, until puffed, golden, and lightly crisp. (You need to watch it carefully!)
Open each roll and layer with provolone, sliced meats and top with grinder salad. Serve immediately.