The Sweet Onion Chicken Teriyaki Sandwich, one of Subway's biggest new product rollouts, is made with common ingredients: teriyaki-glazed chicken breast strips, onions, lettuce, tomatoes, green peppers, and olives. But what sets it apart from all other teriyaki chicken sandwiches is Subway's delicious Sweet Onion Sauce. You can ask for as much of the scrumptious sauce as you want on your custom-made sub at the huge sandwich chain, but you won't get any extra to take home, even if you offer...