Ingredients
Method
Preparation
- Preheat oven to 400°F and lightly grease a 9x13-inch baking dish.
- Melt butter in a large skillet over medium heat. Add onion, carrots, and celery; sauté for 5 to 6 minutes until softened.
- Stir in flour and cook continuously for 1 minute.
- Gradually whisk in chicken broth and milk. Add salt, black pepper, thyme, and garlic powder. Simmer, stirring, until sauce thickens, about 3 to 4 minutes.
- Fold in shredded chicken and peas into the sauce mixture, then remove from heat.
- Transfer filling to the prepared baking dish and spread evenly.
- Unroll pie dough and cover the filling, trimming excess. Cut small vent slits in topping.
- Brush beaten egg evenly over the crust surface.
Baking
- Bake for 35 to 40 minutes until crust is golden and filling bubbles.
- Allow casserole to rest for 10 minutes before slicing and serving.
Notes
For a gluten-free version, ensure to use gluten-free flour. Use a serrated knife for cutting the pie dough.
