Back in the early 1900s, cowboys in America's West ate a lot of pork and beans. Pork-and-bean companies made lots of money selling pork and beans to the cowboys.

In those days, there were many Mexican cowboys (vaqueros) working with the American cowboys. But these vaqueros didn't buy or eat pork and beans, even though they worked right along side their American counterparts.

The pork-and-bean companies couldn't understand this, so they did a study to see if they could find out why. What they found is that Mexicans like leftovers. So now we have...

... refried beans.