1 lb. ground beef
1 onion, chopped
½ stick butter
1 carton fresh mushrooms, sliced
1 carton sour cream
1 can cream of mushroom soup
1 pkg. egg noodles, cooked al dente
Cook ground beef, onion, and butter in crock-pot for an hour on low. Add remaining ingredients (except noodles) to crock-pot and cook an additional 2-4 hours. Spoon all over cooked noodles.