Preheat oven to 350°. In a large bowl, combine the hash browns, salsa, egg, soup mix, taco seasoning and 1 cup cheese. Crumble beef over mixture and mix lightly but thoroughly. Shape into a 12-in. loaf. Place in a 13x9-in. baking dish., Bake, uncovered, for 1 hour or until a thermometer reads 160°. Sprinkle with remaining 1 cup cheese; bake 5 minutes longer or until cheese is melted. Let stand for 10 minutes before slicing. If desired, serve with additional salsa.