This delicious hash brown casserole is perfect for a large brunch or dinner, or take it along to a potluck gathering. Use light sour cream and soups to make this casserole a bit lower in fat. The hash brown bake is an excellent dish to serve with a big family breakfast as well. Feel free to omit the green onions if you'd like. If you prefer a recipe without condensed soup, try this hash brown casserole.