Yesterday my wife and I decided to dehydrate a few vegetables. We found some peas, frozen corn and mixed vegetables on sale at a local discount house. These were taken home and placed in our old electric dehydrator. They were then allowed to dry over night. The following morning we had a nice bunch of dehydrated vegetables.
We temporarily store them in a plastic bag until we get enough to fill a one gallon Mylar pouch. If you put an oxygen absorber into the pouch the food will keep for years.
I have a friend who has filled five gallon buckets with bags of frozen food he has dehydrated in this manner. Some are five or six years old now and the food is still fine. He also uses the dehydrator on left over fresh vegetables rather than throw them out.
I know it seems funny to dehydrate frozen food, but unless you have a big garden, it is cheaper than buying fresh and you can do it all year round.