Sour Creamed Green Beans
["1 onion, thinly sliced", "1/2 c. margarine", "2 (10 oz.) pkg. frozen green beans, thawed and drained", "1 c. sour cream", "1/4 c. flour", "1 1/2 tsp. salt", "1/4 tsp. pepper", "1 c. shredded sharp Cheddar cheese", "1 c. soft bread crumbs"]
["Saute onion in 1/4 cup margarine.", "Add to combined beans, sour cream, flour and seasonings; mix lightly.", "Pour into greased 1 1/2-quart casserole.", "Sprinkle with cheese.", "Top with crumbs, tossed with 1/4 cup melted margarine.", "Bake at 350\u00b0 for 25 minutes.", "Makes 4 to 6 servings."]
["onion", "margarine", "frozen green beans", "sour cream", "flour", "salt", "pepper", "Cheddar cheese", "bread crumbs"]