Cut onions in half. Rinse and pat dry ¼ cup sliced roasted red peppers. Fill 8 pita bread halves with the cheese, onions, red peppers, and ½ cup sliced pepperoncini. Brush outsides of pitas with a little oil and cook, turning once, until grill marks appear. Serve with mixed olives.
Recipe: Grilled Halloumi Pitas