French Onion Chicken Pot Pie

1. Preheat your oven to 375 degrees F. Grease a 9x9 baking dish.
2. Heat a large pot over medium high heat. Add in your oil.
3. Add your cubed chicken and begin to brown. Season with salt, onion powder, garlic powder and ground mustard.
4. Once chicken is cooked through remove and set aside.
5. Add your white wine and French onion gravy to your pot and whisk until well combined.
6. Pour in your stock and cream and bring mixture to a boil. Add in your veggies and let cook about 3 to 5 minutes.
7. Pour your chicken into your gravy and vegetable and stir until well combined. Remove from heat.
8. In a small bowl whisk your egg and cream together.
9. Add your pot pie mixture to your baking dish. Roll your puff pastry out slightly and lay over your dish. Crimp your pastry to the dish to seal. Cut 4 small slits in the center to allow any steam to vent. Brush with your egg and cream mixture.
10. Bake your pie for 20 to 25 minutes, until pastry is golden brown.
11. Remove and let sit 10 minutes before serving.