Potato Casserole - cooking recipe

Ingredients

2 lb. hash browns
2 cans mushroom soup
onion, chopped
500 ml sour cream
1 lb. medium Cheddar cheese
1/2 c. butter, melted

Preparation

Mix all together.
Bake at 350\u00b0 for 1 to 1 1/2 hours in a 9 x 13-inch pan.
Sprinkle Parmesan cheese on top.