In a large pot, melt the butter over medium heat.
Add diced onions, celery, and carrots, and sauté until tender.
Stir in the flour and cook for 1-2 minutes to create a roux.
Gradually whisk in the chicken broth, ensuring no lumps remain.
Add the shredded chicken, peas, thyme, garlic powder, salt, and pepper.
Bring the mixture to a simmer and cook for about 10 minutes.
Slowly stir in the heavy cream, allowing the soup to thicken.
Adjust seasoning as needed, adding more salt or pepper to taste.
Serve hot in bowls, garnished with additional chicken if desired.
Enjoy your delicious chicken pot pie soup!