Authentic Italian Muffuletta Sandwich with Olive Salad

Ingredients

• 1 cup green olives, pitted and coarsely chopped
• 1 cup black olives, pitted and coarsely chopped
• 1/2 cup giardiniera (Italian pickled vegetables), drained and coarsely chopped
• 1/4 cup roasted red peppers, chopped
• 1/4 cup capers, drained
• 1/2 cup celery, finely chopped
• 3 cloves garlic, minced
• 1/2 cup extra virgin olive oil
• 1/4 cup red wine vinegar
• 1 teaspoon dried oregano
• 1/2 teaspoon red pepper flakes
• Freshly ground black pepper, to taste
• 1 large round Italian sesame seed bread (approximately 25 cm in diameter)
• 115g thinly sliced mortadella
• 115g thinly sliced salami
• 115g thinly sliced capicola
• 115g thinly sliced provolone cheese
• 115g thinly sliced mozzarella cheese