Patty Shells Chicken Pot Pies - can be made vegan!

Nothing says comfort food like a chicken pot pie (besides meatloaf!)  This version is so elegant you can serve it to company!  It's so delicious that my husband says he could eat it once a week.  I used to make the kids the vegan version and they loved it!  
To make this dish you will need:
2 large boneless chicken breasts, boiled and chopped - vegans either omit or use vegan chicken strips
3 celery stalks
3 medium carrots, peeled
1 large yellow onion
1 large Idaho potato
4 tablespoons (1/2 stick) butter
1/4 cup all-purpose flour
2 cups low-sodium chicken broth - vegans use vegetable stock
1 chicken bouillon cube - vegans use vegetable bouillon
1/4 cup white wine, optional
1/2 cup frozen peas
1 cup heavy cream
2 sprigs fresh thyme
1 teaspoon kosher salt, or more as needed
black pepper

2 packages of frozen patty shells

1.)  Begin by finely dicing the vegetables. Slice the celery stalks into narrow strips, then slice in the other direction to create a fine dice. Repeat this process with the carrots, the onion, and the potato.
2.)  Melt the butter in a large pot or Dutch oven over medium heat. Add the potato, onion, carrots and celery. Saute until the vegetables start soften, about 10 minutes.
3.)  Sprinkle the flour evenly over the vegetables and stir to combine. Cook for a couple of minutes, stirring gently.
4.)  Pour in the broth, stirring constantly. Stir in the bouillon cube and wine if using. The flour will combine with the vegetables to create a delicious gravy. Next, add the peas.  Add the chopped chicken and stir to combine.
5.)  Pour in the cream and stir. Allow the mixture to cook over low heat, thickening gradually, about 4 minutes. Season with the thyme, salt and pepper, and remove from the heat. Taste and adjust the seasonings as needed. Be sure it's adequately salted!
6.)  As this is simmering over low heat, cook the patty shells according to the package directions.  Once done remove top and soft center.  Scoop in the chicken pot pie mixture.  Replace top and enjoy!