Cheesy Hash Browns Casserole

• 2 lbs frozen hash browns
• 1 onion, diced and sauteed
• 14 lb button mushroom, sliced
• 2 13 cups canned cream of mushroom soup
• 6 ounces colby cheese, grated
• 6 ounces mild cheddar cheese, grated
• 3 tablespoons parmesan cheese or 3 tablespoons romano cheese
• 1 teaspoon fresh ground black pepper
• 14 teaspoon nutmeg
• cooking spray
• 2 teaspoons butter or 2 teaspoons margarine

1. Preheat oven to 375F.
2. Butter or cooking spray a 9x13" baking dish.
3. In 1 teaspoon or 2 reaspoons butter saute the onions & mushrooms, until onions are slighly golden, about 5 minutes.
4. Mix all the ingredients and transfer to baking dish.
5. Bake for about 45 minutes.

browns, onion, button mushroom, cream of mushroom soup, colby cheese, cheddar cheese, parmesan cheese, fresh ground black pepper, nutmeg, cooking spray, butter

Taken from www.food.com/recipe/cheesy-hash-browns-casserole-151091 (may not work)