From the Coupon Sherpa post:
Biscotti Frapuccino – This is a typical frapuccino but it has a biscotti blended inside. You will have to purchase the biscotti separate when you are checking out, but you can have it in any flavor frap.
Land, Sea, and Air Burger – The Land, Sea, and Air burger, has a beef patty, chicken patty, and fillet-o-fish patty all piled high onto a bun.
Quesorito – A quesadilla with any of the fillings used in a burrito, rolled together and baked in the tortilla warmer. This is a crispier version of a quesadilla.
What are your favorite secret things to order?
24 Secret Restaurant Menus Revealed [Coupon Sherpa]