1 package (30 oz.)country-style hash-brown potatoes
1 pint sour cream
1 stick butter
1 can Cream of Chicken soup
1 tsp. dried onion flakes or: 1/4 cup chopped onion
2 cups shredded cheddar cheese
Melt butter.. Place slightly thawed potatoes in 9 by 13 inch casserole, pour melted butter over, and mix well.
In very large bowl, combine: sour cream, soup and cheese.
Add potatoes to above mixture.
Spread in casserole, and top with crushed corn flakes
Bake uncovered 1 hour at 350 degrees.
Note: You can add left-over ham to this, making a complete meal.