Green Bean Casserole 30 ounces green beans, canned -- drained* 10 3/4 ounces cream of mushroom soup 3/4 cup milk 2 3/4 ounces french fried onions 1/8 teaspoon pepper Mix green beans, soup, milk, pepper and 1/2 of the onions together. Spread mixture in a 1 1/2- to 2-quart casserole dish. Bake at 350 F for 25 minutes. Top with remaining onions. Bake 5 minutes more. Note: *May substitute 18 ounces frozen cut green beans, thawed and drained. - - - - - - - - - - - - - - - - - -