2 to 2 1/2 lb. chuck or beef steak, 1 or 1 1/2 inch thick
1 stick butter
1 pkg. dry onion soup
1/2 to 1 lb. mushrooms, fresh or canned

Arrange a sheet of foil on a shallow pan. Using 1/2 of the butter, cut in pieces on foil. Place half the onion soup over this. Place steak on top of this. Then rest of butter and soup over steak; lastly cover mushrooms over all. Fold foil around meat to seal. Bake about 2 1/2 hours at 350 degrees.