Consider the "protein-style" and "animal-style" burger options at In-N-Out ... the official menu, the grilled cheese is certainly considered to be a part of the secret menu.

Treat yourself by taking your In-N-Out order to the next level. When you roll up to order, ask for one of these secret menu burgers for a special experience.

Five Guys is known for their hefty burgers ... secret menu items we found on the internet, including the double grilled cheeseburger, patty melt, burger bowl, the Presidential, steak frites, and ...

Five Guys Burgers and Fries has a relatively simple menu compared to its fast-food restaurant competitors. But there are customer-made lists of not-so-secret ... grilled cheese, they turn it ...