This easy turkey pot pie recipe transforms Thanksgiving leftovers into a cozy meal with tender turkey, veggies, and creamy gravy baked under a flaky pastry crust.
Make the egg wash. In a small mixing bowl, whisk together the egg and water; set aside.
Roll out the pastry sheet. On a lightly floured working surface, roll out the pastry sheet into a 12-inch square. Then, cut the square into 16 small squares and set aside.
Make the turkey filling. Melt butter in a 10-inch oven-safe skillet set over medium heat. To the melted butter, add the onions, carrots, and celery; cook for 4 minutes. Stir in the diced turkey. Sprinkle flour over the mixture and stir it around; continue to cook for 2 more minutes while constantly stirring.
Add the remaining ingredients. Pour in the broth and continue to stir. Stir in the cream and peas and bring the mixture to a boil. Continue to cook for 3 to 4 minutes, or until the mixture thickens. Season with thyme, salt, and pepper; taste for salt and adjust accordingly. Remove from heat.
Assemble. Arrange previously cut puff pastry squares on top of the turkey mixture, each square slightly overlapping so that the entire surface of the creamy mixture is covered. Using a pastry brush, brush the squares with the egg wash. Optionally, sprinkle the top with sea salt.
Bake. Transfer the skillet to the oven and bake for 20 to 25 minutes, or until the mixture is bubbly and the top is browned.
Cool and serve. Remove the turkey pot pie from the oven and let it rest for 10 minutes. Sprinkle with fresh thyme leaves and serve.