I’m not into prepping food but I can give you a solid tip on a piece of gear you absolutely need to prepare it:
https://www.kellykettleusa.com/
I recommend these items:
Thermal cooker
Rocket stove
Solar oven
Bathtub water storage bladder
10 liter fermentation crock
Hand-cranked large quantity vegetable slicer/shredder
Well stocked field medic bag
Thank goodness for a coffee percolator I’d bought right before the TX freeze.
Printing instructions for making a rocket stove is also a good idea if you live where there are lots of twigs. I have instructions for one made of 26 bricks, but you can make them out of cans and other materials.