This latest menu addition from Arby’s is made with thinly sliced pork topped with melted provolone cheese, lettuce, tomato, red onion, banana peppers, red wine vinaigrette and garlic aïoli on a toasted sub roll for $5.49. The Smoked Italian Porchetta Sandwich, along with the Mount Italy Sandwich, which also contains porchetta, will be available through the end of August.