In a medium bowl, whisk together the mayonnaise, red wine vinegar, minced garlic, and sweetener until creamy and well combined. Add Italian seasoning, and season with salt, pepper, and optional chili flakes to taste. Set aside for about 5 minutes.

While the dressing rests, slice the ham, salami, and pepperoni into strips. Cube the provolone cheese and shred the iceberg lettuce finely.

In a large mixing bowl, combine the shredded lettuce, sliced meats, cubed cheese, halved grape tomatoes, sliced pepperoncini, and diced red onion. Gently toss the ingredients together.

Drizzle the prepared dressing over the salad ingredients and toss everything gently to coat.

Serve immediately or refrigerate separately until ready to serve.