Cheesy Ham HashBrown Casserole

recipe adapted from this
about 15oz frozen hash browns
1 hamsteak (or equivalent), cubed
1 can cream of potato soup
1/2 container sour cream
1 bag (8oz) shredded cheddar
1 c parmesan (or more cheddar instead)
other ingredients (optional) mushrooms, onion, pepper, etc.

Preheat oven to 375F.
Grease 8"x8" baking dish.
Mix all ingredients(except parm) in a large bowl, and transfer to baking dish.
Sprinkle with parm.
Bake for 1 hour, or until browned. If edges start to brown too fast cover edges with foil.

more photos: