Spread one can of cream of mushroom soup evenly on the bottom of the crockpot.
Add cube steaks on at a time. Make sure to take out any wrappers or patty papers.
Spread the last can of cream of mushroom soup over the steaks. Sprinkle the dry onion soup mix on top.
Cook on low for 6-8 hours or until the steaks are no longer pink and easily pulled with a fork. If you have time break the steaks apart while cooking to allow the soups to get between the layers. Serve with mashed potatoes and a hot vegetable or white rice and a steamed vegetable.