Serious Eats
10 Secret Fast Food Menus
This video is kinda long and pointless, but I needed something to illustrate this post, OK? I don't know what's more disturbing--the Grand Slam burger or that the guy takes off his shirt to eat it.
Mental Floss lists ten secret menus. Don't worry, the well-known In-N-Out not-so-secret menu is not among them. What is: candy-flavored smoothies at Jamba Juice, nachos at Chipotle, Wendy's Grand Slam (aka the "Meat Cube"), and unbreaded chicken at Popeyes (but why would you order that?).