1. 1. Preheat the oven to 375°F (190°C).

2. 2. Cook the egg noodles according to package instructions, then drain and set aside.

3. 3. Season the chicken breasts with salt and pepper, then grill or bake until fully cooked. Allow to cool slightly, then shred the chicken into bite-sized pieces.

4. 4. In a large mixing bowl, combine the cooked egg noodles and shredded chicken.

5. 5. Pour your favorite sauce over the chicken and noodle mixture (e.g. creamy mushroom sauce, alfredo sauce, or cheese sauce). Mix well to coat everything evenly.

6. 6. Transfer the mixture into a baking dish lined with pastry dough, spreading it out evenly.

7. 7. Cover the casserole with another layer of pastry dough, sealing the edges tightly.

8. 8. Bake in the preheated oven for 25-30 minutes, or until the pastry crust is golden brown and crispy.

9. 9. Serve hot and enjoy!