"Necessity is the mother of invention," as Greek philosopher Plato once said. This couldn't be more true when it comes to food. During some of the toughest times in human history, we've come up with innovative ways to feed ourselves, some of them quite delicious. So much so, in fact, that certain frugal dishes invented in times of scarcity remain favorites to this day.
In this gallery, we remember some of the dishes that were invented in times of need and are still eaten to this day.