1 1/2 pkg. O'Brien potatoes, thawed
1 (8 oz.) softened cream cheese
1 cube butter, softened
1 can cream of celery soup
1/2 c. milk
8 oz. grated Cheddar cheese, divided in half

Mix above ingredients, reserving 1/2 of the cheese. Bake in 9 x 13 dish at 350 degrees for 1 1/2 hours. Top with cheese for the last 10 minutes.