1/2 lb. spaghetti, uncooked
1 lb. boneless skinless chicken breasts, cut into thin strips
1 pkg. (16 oz.) frozen bell pepper and onion strips, thawed, drained
1/2 cup fat-free reduced-sodium chicken broth
1 Tbsp. creamy peanut butter
2 Tbsp. chopped fresh cilantro
2 Tbsp. chopped cocktail peanuts