Preheat oven to 375°F. Grease a 9x13-inch baking dish.

In a large bowl, mix hashbrowns, turkey, stuffing, peas, and cheese.

Whisk soup, milk, pepper, and melted butter. Pour over the hashbrown mix and stir to combine.

Transfer to the dish and spread evenly. Cover with foil.

Bake 25 minutes covered, then remove foil and bake 10–15 more minutes until top is set and golden.

Let sit 5 minutes before serving.