Hashbrown casserole

I've been craving hashbrown casserole. This one sounds yummy and easy!

2 pounds frozen hash browns -- thawed
1/2 cup margarine -- melted
1 can cream of chicken soup -- condensed
1 pint sour cream
1/2 cup onion -- chopped
2 cups cheddar cheese -- shredded
1 teaspoon salt
2 cps Cornflakes -- crushed
1/4 cup margarine -- melted

COMBINE next 7 ingredients and mix with hashbrowns. PUT all in a 3 quart casserole. SAUTE cornflakes in butter and sprinkle on top. COVER and BAKE at 350 degrees for about 40 minutes.