1 med. onion, chopped (about 1/2 cup)
1 tbsp. butter
1/2 c. dry White wine or chicken broth
2 pkg. (9 oz. ea.) frozen French-style green beans, thawed and drained
1 can (10 3/4 oz.) condensed cream of mushroom soup
1 can (4 oz.) mushroom stems and pieces, drained
1 can (2.8 oz.) French fried onions
1 pkg. (12 oz.) crunchy fish fillets

Heat oven to 400 degrees. Grease rectangular baking dish, 11 x 7 x 1 1/2-inch, or 3 quart casserole. Cook onion in butter in 3 quart saucepan over medium heat, stirring frequently, until tender. Stir in wine, beans, soup and mushrooms; heat through. Pour into baking dish. Top with French fried onions and fillets. Bake uncovered 25 to 30 minutes or until mixture is bubbly and fillets are hot.