Mix first 4 ingredients. In a large skillet, heat 1 tablespoon oil over medium heat; brown pork chops on both sides. Remove from pan., In same pan, saute onions in remaining oil over medium heat until tender. Add juice mixture; bring to a boil. Reduce heat; simmer, covered, 10 minutes. Add pork chops; cook, covered, until a thermometer inserted in pork reads 145°, 2-3 minutes. Let stand, covered, 5 minutes before serving. If desired, serve over noodles and top with green onions.