Deep Dish Turkey Pot Pie

Ingredients

• 1 tbsp olive oil
• 1/2 medium finely diced onion
• 2 stalks finely diced celery
• 6-8 medium diced white mushrooms
• 8-10 sprigs finely chopped fresh parsley
• 1 cup frozen peas (defrosted)
• 1 cup frozen carrots (defrosted)
• kosher salt and freshly ground black pepper
• 2 cups leftover roast turkey (shredded or cut into 1/2" cubes)
• 1 1/2 tbsp flour
• 1 cup chicken stock
• 2 tbsp leftover turkey gravy
• 2 deep dish frozen pie crusts (defrosted)