Place butter in 13-in. x 9-in. baking dish; set aside. In a large bowl, combine the eggs, milk, sugar, vanilla, nutmeg and salt. Stir in the rice and raisins.
Transfer to prepared baking dish. bake, uncovered, at 325° for 30 minutes; sprinkle with coconut.
Bake 10-15 minutes longer or until a thermometer reads 160°.