If you know even a little about Five Guys, you know the burger joint has never held back when it comes to customization. Step inside and the menu practically dares customers to pile on the toppings.

Add Yahoo as a preferred source to see more of our stories on Google. Empty Five Guys restaurant interior - ShotOnCanvas/Shutterstock There are tons of secret menu ...

Five Guys French fries in a white cup and a Five Guys cheeseburger. - Irati Ventoso Cenzano/Shutterstock Ordering items off a restaurant's secret menu is some of the most fun you can have at any chain ...

Five Guys is known for deliciously juicy burgers, salty fresh fries (this chain uses the best type of potatoes for making fries for most of the year), and peanuts that you can snack on while waiting.