In large frypan, place oil and heat to medium temperature. Add chicken and cook 6 minutes or until light brown. Remove chicken from frypan and keep warm. Spray frypan with cooking oil. Add zucchini, red pepper and onion. Sprinkle with seasoning. Do not stir. Cook about 4 minutes, or until vegetables are tender crisp. Add frozen tortellini and place chicken on top. Spread salsa evenly over chicken. Cover and cook about 20 minutes or until fork can be inserted in chicken with ease.