Spray large nonstick skillet with nonstick cooking spray. Add chow mein meat; cook over medium-high heat for 5 to 7 minutes or until browned, stirring frequently. Add celery, carrots, onion and bell pepper; cook 2 minutes, stirring occasionally.
Add broth, stir-fry sauce and sugar; stir to mix. Cook over medium heat for 8 to 10 minutes or until vegetables are crisp-tender, stirring occasionally. In small bowl, blend water and cornstarch until smooth. Add to skillet; cook and stir until thickened.
Meanwhile, cook noodles to desired doneness as directed on package.
Serve pork mixture over noodles. Sprinkle with cashews.