String Bean Casserole
["1 Tbsp. butter", "1 grated onion", "1 Tbsp. flour", "1 tsp. sugar", "1/2 pt. sour cream", "3 slices Swiss cheese", "3 pkg. frozen French-cut green beans"]
["Melt butter; add onion, flour, sugar and sour cream.", "Melt 3 slices Swiss cheese, cut up, and mix all with green beans which have been cooked 5 minutes and drained.", "Bake at 350\u00b0 for 1/2 hour covered on until bubbles.", "Serves 6."]
["butter", "onion", "flour", "sugar", "sour cream", "Swiss cheese", "green beans"]