Prepare pasta according to package directions. Drain and keep warm.
Trim fat from pork chops, and cut into thin strips; place in a shallow dish.
Whisk together hoisin sauce and next 5 ingredients. Pour half of hoisin sauce mixture over pork, turning to coat. Let stand 10 minutes.
Sauté pork mixture in a large nonstick skillet over medium-high heat 2 to 3 minutes or until pork is done. Remove pork from skillet.
Sauté spinach and next 4 ingredients in hot oil over medium-high heat 3 minutes or until spinach is wilted. Stir in pasta, pork, and remaining half of hoisin sauce mixture, and cook, stirring constantly, 2 minutes or until thoroughly heated. Serve with lite soy sauce, if desired.