Cook noodles according to package directions, omitting salt and fat; drain. Place in a large bowl. Snip noodles several times with kitchen scissors.
Combine ginger, five-spice powder, and pork in a medium bowl; add 1/4 teaspoon salt, tossing to coat. Heat oil in a large nonstick skillet over medium-high heat. Add pork mixture; sauté 2 minutes or until browned. Stir in remaining 1/4 teaspoon salt, water, and hoisin sauce; cook 2 minutes or until pork is done. Add pork mixture and green onions to noodles; toss well to combine.