Trim fat and bone from steak and brown in skillet with small amount of oil or fat. While meat is browning, scrub or peel potatoes, onions, carrots and celery. Quarter potatoes and other vegetables, carrots can be sliced, if preferred.
Place vegetables in bottom of crockpot, they take longer to cook. Add browned steak, seasoned with a little salt and pepper, if desired. Pour can of mushrooms over steak, top with cream of mushroom soup. Cover and cook slowly (may be started on high setting). Allow at least 3 or 4 hours.
Steak should be very tender when potatoes and carrots are done. We prefer regular round steak, but cube steak or any lean steak is good. A very favorite.
