Cheesy Potato Ham Bake

1 pkg. of 32 oz. frozen hash brown potatoes

8 oz. cooked, diced ham

2 Small cans condensed cream of potato soup

16 oz. sour cream

2 cups shredded sharp Cheddar cheese

1 1/2 cups grated Parmesan cheese

Preheat oven to 375 degrees. Lightly grease a 9x13 inch baking dish. In a large bowl, mix hash browns, ham, cream of potato soup, sour cream, and Cheddar cheese. Spread evenly into prepared dish. Sprinkle with Parmesan cheese.

Bake 1 hour in the preheated oven, or until bubbly and lightly brown. Serve immediately.