Italian Hero Salad

Name: Italian Hero Salad
Ingredients: 1 hero roll (about 4 ounces), cut into 1-inch cubes; 1/3 cup plus 1 tablespoon extra-virgin olive oil; 1 teaspoon Italian seasoning; Freshly ground pepper; 3 tablespoons red wine vinegar; Kosher salt; 1/2 small red onion, very thinly sliced; 1 pint cherry or grape tomatoes, halved; 3 romaine hearts, chopped; 4 ounces provolone cheese, diced; 3/4 pound sliced Italian meats (such as mortadella, prosciutto, salami and/or soppressata); Giardiniera, jarred roasted red peppers, marinated mushrooms, marinated artichokes and/or pickled pepperoncini, for serving; Grated Parmesan cheese, for topping