No they don't.
Although not very popular in the United States, you may be able to find a can of pickled Lettuce. Lettuce is known for (usually) only being sold fresh.
Lettuce
lettuce
Lettuce
You can make a wicked pasta salad with drained canned salmon. Canned salmon is also nice in a cream sauce on rice - brown or white. You can use it as a sandwich filling similar to tuna salad, or put it on plate with a couple of leaves of lettuce and tomato slices for an individual salad. Are you hungry yet?
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.
Lettuce
I'm not positive, but I've never seen canned or frozen cucumbers:)
Lettuce
You can use canned chicken broth, canned chicken and canned vegetables.
No