1 can cooked sauerkraut, drained
1 box spiral noodles, cooked and drained
1/2 lb. fresh mushrooms, sliced (or canned, drained)
1 can cream of mushroom soup
1 lg. onion, sliced
1 lb. butter
Sour cream

Mix first 5 ingredients and 1/2 pound butter. Add more butter to taste. Cover with foil and warm at 300 degrees. Serve with sour cream.