Add the chopped iceberg lettuce, red onion, banana peppers, grape tomatoes, salami, pepperoni, turkey, provolone cheese, and parmesan cheese to a large mixing bowl.
In a separate small bowl or jar, whisk together the mayonnaise, red wine vinegar, banana pepper juice, garlic powder, oregano, salt, and black pepper until smooth and creamy.
Pour the dressing over the salad mixture.
Toss the Italian Grinder Salad thoroughly until all ingredients are evenly coated in the dressing.
Serve immediately and enjoy this crunchy chopped sub salad fresh.