When the shit hits the fan it will help you to have resigned yourselves to be ready to eat anything from roaches to your fellow man. That's survival food my friends, all the other suggestions are just a way to temporarily to set back the inevitable.

Things like beans, lentals, and many of the other suggestions are bad news. You need fire, with fuel and lots of time and water to cook them. Than just won't do with people like me ready to take your food away when you've cooked it and then me being ready to kill you and eat you. Other than that....

Peanut Butter is good.