Preheat oven to 425º. Grease a 9 pie pan. Press hash browns into pan to form crust. Brush with melted butter. Bake 25 minutes. Reduce oven temperature to 350º. Fill crust with cheeses and ham. Whisk together milk, eggs and seasoned salt. Pour into pan and bake 30-40 minutes or until knife inserted in center comes out clean.