Hash Brown Casserole

1 (2 pound) package frozen hash brown potatoes, thawed
1/2 cup melted butter
1 (10.75 ounce) can condensed cream of mushroom soup
1 (8 ounce) container sour cream
1/2 cup chopped onions
2 cups shredded cheddar cheese
1 teaspoon salt
1/4 teaspoon ground black pepper
2 cups crushed cornflakes cereal (measured after they are crushed)
1/4 cup melted butter


Preheat the oven to 350 degrees. In a large bowl, combine the hash browns, 1/2 cup melted butter, cream of mushroom soup, sour cream, chopped onion, cheddar cheese, salt, pepper. Place the mixture in (2) 8x8 baking dishes or (1) 9x13 baking dish. In a medium saucepan over medium heat, saute the cornflakes in 1/4 cup melted butter, and sprinkle the mixture over the top of the casserole(s). Bake covered in the preheated oven for 40 minutes. This is an excellent recipe for family gatherings and reunions. Great for supper too!