Approx. 2 lbs. round steak, cut into 1" pieces
3 tbsp. butter
1 can mushrooms, drained (any size can)
Chopped onion (as much as you like)
2 cans cream of mushroom soup
1 sm. container sour cream
Approx. 1 lb. flat egg noodles

On stove top melt butter - add steak and brown until almost dry (very little butter left) - add onions and mushrooms the last few minutes of browning. Add 2 cans cream of mushroom soup, mix. Transfer to crockpot and cook on low approximately 6 hours, stirring occasionally. Just before you are ready to eat, add the sour cream and mix. Serve on hot buttered noodles.