Preheat oven 350ºF

Season and bake chicken on a sprayed sheet pan at 350°F for 20 minutes

In a saucepan, add the cream and water, and bring to a boil. Then add the vegetables and chicken base. Simmer for 5 minutes until vegetables thaw out. Add the diced chicken and simmer for another 5 minutes. Then thicken with the slurry while the sauce is on a medium boil sauce should be a cream soup consistency, and season with salt and pepper

Turn oven up to 400ºF. Place the filling in a casserole dish and cover it with puff pastry. Bake at 400°F for 15 minutes until pastry browns