Can I make this dish in advance?

Yes, you can prepare the filling a day in advance and store it in the fridge. Add the pastry right before baking.

Can I use fresh vegetables instead of frozen?

Absolutely! Just ensure they are chopped into small, even pieces for even cooking.

Yes, you can freeze the assembled pot pie, though it's best to do so before baking. Thaw and bake as directed when ready to serve.

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Preheat the oven to 400°F (200°C).
In a cast-iron skillet, melt butter over medium heat. Add onion and celery, and sauté until soft.
Stir in the flour and cook for 1-2 minutes.
Gradually add the chicken broth and heavy cream, stirring until the mixture is thickened.
Add shredded rotisserie chicken, frozen vegetables, garlic powder, thyme, salt, and pepper. Mix well.
Cut the puff pastry sheets into squares and layer them over the chicken mixture in the skillet.
Bake in the preheated oven for 20-25 minutes, or until the pastry is golden brown.
Serve hot and enjoy!

For a healthier option, use reduced-fat cream and whole-grain pastry. To customize, try different vegetables or add cheese on top before baking.