Earlier quoted context omitted.
Onions are pretty fundamental to Western cooking as well, but they're not a staple in the sense that people will starve if they're unavailable, the way potatoes or wheat are.
I've always thought staples were the bulk of the energy content in cultures, i.e. rice, bread from wheat/corn/etc, potatoes. I checked anyway, there's a bunch more I hadn't considered! https://en.wikipedia.org/wiki/Staple_food
#TomatoEbola
https://www.npr.org/sections/goatsandsoda/2016/05/26/4795176...