Add Yahoo as a preferred source to see more of our stories on Google. Adding your filet-o-fish to a chicken patty and a Big Mac might sound outrageous, but it's actually a McDonald's-approved hack.

Hacking the McDonald's menu has been a thing since before anyone even used the word "hacking" to describe it. Whether you're making a Land, Sea, and Air Burger by combining a Big Mac, McChicken, and ...