2 lb. Frozen hash browns
2-10oz. Cans cream of mushroom soup
500ml sour cream
1/2-cup melted butter
2 grated onions
1-tsp salt
2-cups grated medium cheddar cheese
Parmesan

Mix all ingredients together
Place in a 9 x 13 inch casserole dish
Sprinkle with Parmesan
Bake for 1/2 hour in a 350* oven