I remembered after my post that the other things were rice and some
kind of dried beans.
That was supper tonight -- great northern beans. It takes an advanced
degree in chemistry to boil them for a couple of hours with an onion, a
little dry mustard, and some molasses.
Rice, vegetables, and whole grains make up the bulk of my died, with a
little fish occasionally. Other than diced tomatoes and sardines, not
too much comes in a can. I could live quite well on surplus food.