Chapotraphouse

Cubans basically lived off rice and beans during the special period.

Flour for bread. If you haven't made bread from scratch it is much easier to make than most fussy youtube videos, with all the professional accoutrement, make it seem.

Canned foods last for years. Tomatos, green beans, corn or other veggies are good to have.

Some other source of fat for eating or cooking in. Peanut butter, coconut oil, etc. Olive oil, although the good stuff gets nasty after a year or so.