Green Beans With Swiss Cheese
["1 Tbsp. butter", "1 Tbsp. flour", "1/2 tsp. pepper", "1/4 c. milk", "1/2 tsp. grated onion", "1/2 c. sour cream", "2 cans (16 oz.) whole green beans, drained", "1 1/2 c. Swiss cheese, shredded", "1/3 c. cornflake crumbs, crumbled from cereal", "2 Tbsp. melted butter"]
["Heat oven to 400\u00b0.", "Melt butter and blend in flour and pepper; cook, stirring until bubbling.", "Blend in milk.", "Remove and stir in onion and sour cream.", "Combine sauce with green beans and cheese. Turn into buttered 1 1/2-quart casserole."]
["butter", "flour", "pepper", "milk", "onion", "sour cream", "green beans", "Swiss cheese", "cornflake crumbs", "butter"]