Preheat oven to 400 degrees F.
In a large bowl, stir veggies and 1/4 cup pesto to coat.
Place on a large sheet pan.
(Cover sheet pan first with parchment paper for easy cleanup.)
Season chicken with salt & pepper.
Coat chicken with 1/4 cup pesto, and add to the sheet pan.
Bake at 400 degrees for about 24-30 minutes until chicken is cooked and veggies are tender.