Vegetable Sauce
["1/4 c. butter or oleo", "1/4 c. flour", "1 tsp. mustard", "2 c. milk", "1/2 tsp. salt", "2 c. cooked green vegetables"]
["Melt butter or oleo in saucepan; blend in flour and mustard. Add milk; stir over heat until thick.", "Add salt and green vegetables or garnish with parsley.", "Pour over servings of pie like a gravy."]
["butter", "flour", "mustard", "milk", "salt", "green vegetables"]