In a bowl, combine egg, spinach and cottage cheese; set aside. In a greased 11x7-in. baking dish, layer half of the tomato sauce, noodles, spinach mixture, eggs and mozzarella. Repeat layers. Combine the crumbs, Parmesan, butter and garlic; sprinkle over top.
Cover and bake at 350° for 35 minutes; uncover and bake 10 minutes longer or until heated through.