Ingredients:
1 (32 oz) package of frozen hash brown potatoes
8 oz cooked ham, diced
2 (10.75 oz) cans condensed cream of potato soup
1 (16 oz) container sour cream
1 1/4 cups Parmesan cheese, grated
2 cups strong Cheddar cheese, grated

Instructions:
Preheat oven to 375 degrees F. Grease 9×13 inch casserole dish.

Combine cream of potato soup, sour cream, Cheddar cheese, ham and has brown in a large bowl. Mix well. Place into greased casserole dish, top with Parmesan cheese and bake in the oven for about one hour. The casserole should be nice and brown and bubbly.

Serve immediately.