Hoagie Dip

Ingredients

• 1/2 purple onion, diced
• 4 pickled pepperoncini peppers, drained and diced (reserve 1 tablespoon pepperoncini juice for the sauce)
• 1 can chopped black olives (2.25 ounces), drained
• 1/4 pound hard salami, diced
• 1/4 pound deli ham, diced
• 1/4 pound prosciutto, thinly sliced
• 1/4 pound deli-sliced roast turkey, diced
• 1/4 pound deli-sliced provolone cheese, diced
• 1/4 cup mayonnaise
• 1/4 cup sour cream
• 1 tablespoon red wine vinegar
• 1 tablespoon virgin olive oil
• 1 teaspoon dried oregano
• 1 teaspoon black pepper
• 1/4 teaspoon red pepper flakes
• 1/2 head iceberg lettuce, chopped
• 2 tomatoes, seeded and finely chopped
• 10 to 12-inch round loaf of bread, hollowed out
• 8 hoagie rolls, cut into quarters