From In-N-Out's Animal Style to Shake Shack's Peanut Butter Burger, try these secret menu items from popular chains.

Of the many items not on the not-so-secret secret menu, there's one In-N-Out burger variation that tops the rest.

What starts as a simple fast food experiment quickly turns into a chaotic search for the only secret menu items actually ...

In-N-Out already has a cult following, but the people who really love the chain know the best orders aren’t usually found on ...

Secret menus are unofficial, often unadvertised options spread via word-of-mouth, and they range from well-known insider ...