Food you grow in a garden can be preserved in many ways. The best method to dehydrate foods to preserve is to use an electric dehydrator or another method. I make my own vege seasoning all the time now.
How to preserve eggs. Use mineral oil on eggs. I had no idea you could preserve eggs (unrefridgerated) for months by coating them with mineral oil! Alternatives to mineral oil: Jojoba oil or Kepeg (though not sure of the chemical makeup of Kpeg).
Learned a lot. Not storing onions amd potatoes together. Onions stored in pantyhose will last as long as 8 months. -- lots of food storage tricks - 40 DIY Tricks To Make Your Groceries Last As Long As Possible
Root Crop Storage Bin- root veggies like carrots and beets will stay fresh all winter, just fill with layers of damp sand or sawdust, alternating with layers of carrots or beets, and put in a cool, dark place. Squash can go right in the bin without sand.