For some fast food patrons, the regular menu at their favorite restaurant can get a little boring. Enter the secret menu -- often over-the-top variations that have to be seen to be believed.
This off-menu item from Arby's is layered from the bottom up with chicken tenders, roast turkey, ham and swiss cheese. But the fixin's don't stop there. Stacked on top of that is brisket, corned beef, Angus steak and cheddar cheese. Crispy bacon completes the sandwich.
Here's Twitter user @Chris_Guy1's picture of this massive sandwich.
One of the most popular off-menu items from Chipotle is its Quesarito.
This behemoth, photographed by CoupleInTheKitchen, is a mash-up of a quesadilla and a burrito, where the former serves as the latter's shell.
As of 2015, Chipotle charges an extra $3.50 for this secret-menu upgrade.
McDonald's: Land, Sea and Air Burger
The biggest burger on the list combines three of McDonald's most-popular sandwiches into one beast of a meal. The Land, Sea and Air Burger consists of a Big Mac, Filet-O-Fish and a McChicken. And if consumers are feeling even more gluttonous, some like to add fries.
Wendy's is known for their square-shaped burgers, but this is off-menu meal takes it to towering levels. The Meat Cube, or Grand Slam Burger, is a secret-menu item that adds even more beef patties to Wendy's 3/4 pound burger.
Recently @SlowlbutShirley decided to go full-cube by adding an extra three beef patties, for a total of six.
Shake Shack: Peanut Butter-and-Bacon Shackburger
Shake Shack's Peanut Butter-and-Bacon ShackBurger is one of the more uncommon burger combinations on the list.
This secret menu item adds peanut butter sauce and bacon to the original Shackburger. Here's @MikeCips' photo of the off-menu meal.
In-N-Out: Animal Style Burger
Unless West Coasters have been living under a rock, they know all about In-N-Out's "Not-So-Secret" menu. But for the uninitiated, there's the Animal Style Burger.
Along with the usual toppings, Animal Style adds pickles, even more secret spread, and grilled onions, while the patties are grilled with mustard on them to give the burger an extra kick.
The photo above was taken by In-N-Out enthusiast and Instagram user Myra_Perez.
This burger isn't the only item that can be Animal Styled at In-N-Out ...
In-N-Out: Animal Style Fries
For many fans, no In-N-Out meal is complete without the fast food joint's Animal Style Fries.
With the addition of melted cheese, grilled onions and secret spread sauce, In-N-Out's off-menu fries are a huge hit.