Bring a pot of water to boil, cook pasta according to package, drain and set aside
Preheat oven to 350 degrees.
In a large bowl add cooked pasta, shredded chicken, pesto, chicken stock, and sun dried tomatoes. Gently mix together.
In a 9x13 baking dish, spread pasta chicken mixture evenly, and top with mozzarella & parmesan cheese. Bake in the oven for 15-20 minutes or until the cheese is melted on top.
Serve and top with more cheese if desired.