Press thawed hash browns between paper towels to remove moisture. Fit hash browns into greased 10 inch pie plate, forming a solid crust. Brush crust with melted butter, making certain to brush top edges.
Bake at 425 for 25 minutes. Remove from oven. Sprinkle cheeses and ham evenly over bottom of crust.
Beat half and half with eggs and seasoned salt. Pour over cheeses and ham. Bake uncovered at 350 for 30 to 40 minutes or til knife inserted in center comes out clean.Serves 6