"I substituted onion for the celery (my husband is a celery-o-phobe), boneless skinless chicken thighs for the chicken tenders, and store bought pesto for the fresh (I used about half of an 8 oz container). The sauce was delicious. The pesto adds a ton of flavor. When I make this again, I may substitute homestyle egg noodles (or fettuccine) for the""

"Seasoned the chicken with salt before browning. Added finely diced sweet peppers (red, green, and yellow), garlic, and celery with the onion. Only tweak I would make next time is to dice the zucchini more finely. I also might substitute boneless, skinless thighs for the breasts. It was super tasty and wonderfully easy, especially after a long day at work.