In a large saucepan, heat 1 tablespoon oil over medium-high heat. Add chicken; cook and stir 6-8 minutes or until no longer pink. Remove from pan., In same pan, heat remaining oil over medium-high heat. Add vegetables, salt, oregano and pepper; cook and stir 4-6 minutes or until vegetables are crisp-tender. Add wine, stirring to loosen browned bits from pan. Stir in broth, rosemary and bay leaf; bring to a boil., Add orzo. Reduce heat; simmer, covered, 15-18 minutes or until orzo is tender, stirring occasionally. Return chicken to pan; heat through. Stir in lemon zest and juice; remove bay leaf. If desired, top each serving with parsley.