Preheat Oven:
Preheat your oven to 350°F (175°C) and grease an 11 x 14-inch baking dish with cooking spray.
Mix Ingredients:
In a large bowl, combine hash browns, melted butter, cream of chicken soup, sour cream, chopped onion, cheddar cheese, salt, and pepper. Mix until evenly combined.
Bake:
Spread the mixture evenly in the prepared baking dish.
Bake for 45 minutes, or until the top is golden brown and bubbly.
Serve:
Let cool slightly before serving. Enjoy creamy, cheesy comfort in every bite!
