I agree with keeping the pantry full of food that you eat and rotating the stock. I admit to not keeping good records,
but the annual scout "canned food drive" is my reminder to look for food that is not moving.

I also keep about a weeks worth of backpacking food in my pack (aka BOB), I use this over the year camping depending on how much I get out, and reorder as I use it up. Mountain House Scrambled eggs and butter for one are not bad at all, and once you know if you like them you could buy the bulk #10 can.

If you're sheltering in place and looking at really long term, depending on your climate, It would be nice to have a few fruit or nut trees established in the back yard. Asparagus? Grow something you would enjoy eating, and doesn't require too much maintenance ,that way you benefit even if the zombies don't come. 8^)