Lettuce
Pineapple
watermelon
lettuce
Lettuce
Lettuce
I'm not positive, but I've never seen canned or frozen cucumbers:)
Lettuce
lettuce Is only true for certain types. There are canned pickled lettuces.
The likely answer is watermelon. However, there are commercially available dried watermelon chips, and these can be made at home (although they may have limited shelf life). Pickled watermelon rind is also sold in some areas.
Sodium is usually added to canned corn before it is processed to improve its flavor. Much less sodium, if any, is added to frozen corn. However, it is possible to buy canned corn that is low sodium, or even has no added sodiuml.
Vegetable soup can be homemade, with fresh, frozen, or canned vegetables. Or, it can be bought pre-made in cans at a grocery store.
Canned soups that have been frozen cannot be safely used. Freezing cans can cause them to swell and potentially harm the ingredients inside.
Lettuce ! If you ever figured a way to preserve it, you'd make a lot of home gardeners VERY happy ! Lettuce will keep in a refrigerator for a while, but you cannot freeze or dehydrate it. I know of no process to store lettuce !