Spread mayonnaise on each side of the hoagie bun. Layer each side of the hoagie with ham, salami, and pepperoni then layer the provolone cheese down the center.
Place onto a baking sheet under the broiler (on low) and cook, watching carefully, for 1-2 minutes or until the cheese is melted.
Place the shredded lettuce down the center followed by the tomatoes and pepperoncini.
Drizzle the top with Italian dressing, to taste, and a sprinkling of sea salt, freshly cracked pepper, and crushed red pepper, to taste.