Meatless Muffalettas - Three Many Cooks

Ingredients

• 2 medium garlic cloves
• 1/4 cup capers
• 1 cup drained ripe black olives
• 1 cup drained pimento-stuffed salad olives
• 2 tablespoons red wine vinegar
• 2 teaspoons dried oregano
• 1/2 cup extra-virgin olive oil
• 1/2 cup finely chopped celery hearts
• 4 Portuguese rolls, split
• 4 thin slices each (about 9 ounces total) mozzarella, provolone, and pepper Jack
• 1/2 red onion, thinly sliced
• 1 drained can (14 ounces) quartered artichoke hearts, halved
• 3/4 cup sun-dried tomatoes packed in oil, halved