Preheat oven to 350°F. Grease a 9x13' casserole dish.
Let hash browns set out on the counter for about 30 minutes. Place in a large bowl and separate any chunks of potatoes.
30 ounces frozen hash browns
In a small bowl mix soup, sour cream, 2 cups of cheese, salt, and pepper. Add 1 stick melted butter and mix thoroughly.
8 ounces sour cream, 4 cups shredded cheddar cheese, 10.5 ounce can cream of mushroom soup, 1 teaspoon salt, 1/2 teaspoon pepper, 1/2 cup butter
Add creamy mixture to the hash browns and mix well. Spread in a casserole dish.
Topping
Sprinkle remaining cheddar cheese on top of the potatoes.
In a small bowl mix, 1/4 cup melted butter and crushed Ritz crackers. Spread over potato mixture.
2 cups Ritz crackers, 1/4 cup butter
Cover with foil and bake for 25–30 minutes, then uncover and bake another 25–30 minutes until the casserole is cooked through and the crackers are golden brown.
Notes
Can cook in a crock pot on high for 4 - 5 hours or on low for 5.5 - 7 hours in a 5 or 6 quart crock pot
Allow hash browns to soften on the counter for 30 minutes before using