There are tons of secret menu items you can order at Five Guys, including a double grilled cheeseburger if you're in the market for an ultra-hearty meal. This is actually a spin on another Five Guys ...

Five Guys has earned a loyal following for its made-to-order burgers, golden fries, and creamy milkshakes. But there's more to the chain than its classic combo (did you know Five Guys sells hot dogs?) ...