Heat soup, sour cream, and ... inch pan with hash browns. Sprinkle onions on top. Pour cheese mixture over potatoes and onions. Crush cornflakes and ... 40 to 45 minutes.
In saucepan, melt butter, cheeses ... until smooth. Place hash browns in large baking dish (or ... cheese mixture over potatoes. Do not mix. Bake at 350 degrees for 1 hour.