COOK and stir bacon in large saucepan on medium heat 4 min. or until crisp. Use slotted spoon to transfer bacon from pan to medium bowl. Discard all but 2 tsp. drippings from pan.
ADD chicken and oregano to reserved drippings in pan; cook and stir 5 min. or until chicken is no longer pink. Add to bacon.
ADD carrots to saucepan; cook and stir 2 min. Add broth, marinara sauce and pasta; stir. Bring to boil on high heat; simmer on medium-low heat 5 min. Stir in zucchini and chicken mixture; simmer 8 to 10 min. or until chicken is done and pasta is tender. Top with cheese.