Saute onions in 6 Tablespoons margarine. Mix together potatoes, sour cream, soup, cheese and mayonnaise; add onions and margarine. Pour into large greased casserole; top with cereal and margarine, which has been combined (mixture will be crumbly). Sprinkle with bacon bits; bake at 350 degrees for 1 to 1 1/2 hours until browned.
|