1 (32 oz.) frozen hash brown potatoes
1 can cream of mushroom soup
1 pt. sour cream
1 (16 oz.) jar Cheez Whiz
1/4 c. dried onion flakes

Mix all ingredients and place in a glass casserole dish. Top with 1 stick butter mixed with 1 cup crushed potato chips. Bake at 350 degrees for 1 hour.