HEAT oil in large skillet on medium-high heat. Add chicken; cook 5 min. on each side or until chicken is done (165°F). Remove chicken from skillet; keep warm.
ADD water and pepper to skillet. Bring to boil. Add stuffing mix; stir until moistened. Return chicken to skillet.
SPOON salsa over chicken; sprinkle with cheese. Cover. Cook on low heat 5 min. or until cheese is melted.