Mushrooms au Gratin

1/2 pound mushrooms, washed and drained
1/4 cup butter
1/4 cup sour cream
1 tablespoon flour
1/2 cup shredded Cheddar cheese

Sauté mushrooms in butter.
Place in a baking dish.
Mix sour cream, flour and Cheddar cheese and pour
over the top of mushrooms.
Bake at 350 degrees F until hot and bubbly.