Cheesy Green Bean Casserole Serving Size : 4 Preparation Time :0:00 Categories : Amount Measure Ingredient -- Preparation Method -------- ------------ -------------------------------- 1/2 cup chopped onion 2 tablespoons butter or margarine 2 tablespoons flour 2 cups sour cream 32 ounces French-style green beans -- seasoned 1/2 teaspoon salt 1/4 teaspoon pepper 1 cup shredded cheddar cheese Brown onion in 2 tablespoons butter; add 2 tablespoons flour. Mix well. Add sour cream and stir until it is mixed well. Drain water off green beans; put in large bowl. Pour mixture over green beans; salt and pepper. Stir. Pour in baking dish; add shredded cheese over top. Bake at 350 F. for 30 minutes. - - - - - - - - - - - - - - - - - -