Best Crops for a Survival Garden?

And verdolaga ( Portulaca oleracea) ? Don't You think it's a good option for survival garden?  

If I could only plant a few crops, I would go with potatoes, beans, cabbage and beets.

These are the foods that to me have the most value health-wise.

Of course plant what your family will eat.

My goal is a perennial survival food forest (hardiness zone 5b). I have planted chestnut, pear, and mulberry trees and they are doing well. I tried planting butternut, hazel, and persimmon trees, but they died. I would like to try them again though. I'd love for it to be all perennial. I also have some native pawpaw trees, hickories, and berry bushes, but that isn't survival calorie production. I tried planting Siberian pea seeds but they never grew.

I am not sure how to get enough protein (or fat), without adding in some animal products, or annuals such as beans. I am considering geese for animal protein and fat, but I'd rather not be tied to animal husbandry and slaughter, if there is another option. I am going to do some nutrition number crunching to see if it possible to get enough protein and fat with nuts and fruit.

I am a big fan of perennial plants and I like to recommend scarlet runner beans which would be a good source of protein plus it is pretty.

Thicket beans are also perennial;

https://permies.com/t/179300/Phaseolus-polystachios-thicket-bean-wild

https://permies.com/t/25648/Scarlet-Runner-Beans-perennial