Classic New Orleans Muffuletta Sandwich Recipe

Name: Classic New Orleans Muffuletta Sandwich Recipe
Ingredients: 3/4 cup pitted mixed oil-packed olives; 1/2 cup giardiniera (Italian-style pickled vegetable salad, see note); 1/4 cup chopped roasted red peppers; 2 tablespoons parsley leaves; 1 tablespoon capers; 1 medium garlic clove, minced (about 1 teaspoon); 3 tablespoons extra virgin olive oil; 1 tablespoon red wine vinegar; 1 large muffuletta-style roll (see note); 1/3 pound thinly sliced sweet soppressata (5 1/3 ounces; 151g); 1/3 pound thinly sliced mortadella (5 1/3 ounces; 151g); 1/3 pound thinly sliced capicola (5 1/3 ounces; 151g); 1/3 pound thinly sliced provolone cheese (5 1/3 ounces; 151g)