1. Combine the soy sauce and cornstarch in medium bowl, and add pork, stirring to coat. Cover and chill.
2. Place beans in a large saucepan of boiling water, and cook 5 minutes. Drain beans; plunge into ice water. Drain.
3. Heat oil in a large nonstick skillet coated with cooking spray over medium-high heat. Add ginger and garlic; saute 1 minute. Add pork mixture; stir-fry 1-1/2 minutes. Stir in green beans; stir-fry 1-1/2 minutes or until pork is done. Stir in broth; reduce heat, and simmer 2 minutes. Serve over rice; sprinkle with cashews. (Serving size: 1 cup stir-fry mixture, 1/2 cup rice, and 1 tablespoon cashews.)