A.R.
I use puff pastry to make pot pies. I preheat the oven and defrost the puff pastry per the package instructions. While it’s defrosting, I make the filling (cook chicken chunks, blanch broccoli, sauté mushrooms, add sauce, heat through). If I have crème fraiche, I make the sauce from that (sauté mushrooms with garlic/shallots, deglaze pan with wine/chicken broth, add crème fraiche, cook until reduced). Otherwise, the sauce is cream soup (usually cream of mushroom). I have a deep round casserole pan I lay the puff pastry over. The puff pastry is square while the dish is round so there is plenty of puff pastry hanging over the sides of the pan. Fill the dish with the hot filling and then pull the edges of the puff pastry over the top to cover. Bake at 350°F until pastry is done.