Heat remaining oil in same skillet. Add mushrooms; cook 5 min., stirring frequently to scrape browned bits from bottom of skillet. Add onions and garlic; cook and stir 2 min. Stir in pasta sauce and herbs; bring to boil. Return chicken to skillet; spoon sauce over chicken. Cover; simmer on medium-low heat 20 to 25 min. or until chicken is done (165ºF).