When my mom passed away, I saved her recipes. This is one I think is from the depression era. I haven't tried it, so I don't know what it would taste like.
I think it would be a good idea to have Spam in storage, since it isn't expensive and can store well. Here it is:
LAST MINUTE SUPPER
1 can Spam
1 medium onion, thinly sliced
2 T butter
1 Can cream of mushroom soup (or cream of celery or
asparagus)
1/2 C Milk
2 C cubed cooked potatoes (4 medium sized)
2 T chopped parsley
Dash of pepper
Lightly brown meat and onion in butter until tender. Blend in soup
and milk and the rest of the ingredients. Cook over low heat for 10
minutes. Stir often