Shake Shack Releases Limited Edition DC Burger

If the Super Fry Frickle Burger knocked you off your feet, you must get in line for the release of Shake Shack’s newest burger in the city. The Mushroom Swiss Shack is a Swiss Cheeseburger topped with carmelized onions, crimini mushrooms and herb cheese spread. Gooey cheese, flavorful mushroom and a perfectly cooked burger? We call that something to be thankful for.