Creating the perfect Beef Pot Pie is a simple yet gratifying process. Follow these steps for delicious results:

1. Sear the Beef: In a large pot, heat olive oil over medium-high heat. Add beef cubes and sear until browned on all sides, about 5-7 minutes.
2. Sauté Vegetables: Remove beef and set aside. In the same pot, add onion, carrots, celery, and mushrooms. Sauté for about 5 minutes until softened.
3. Add Garlic: Stir in minced garlic and cook for an additional minute until fragrant.
4. Make Gravy: Return the beef to the pot. Add beef broth, Worcestershire sauce, tomato paste, thyme, and rosemary. Bring to a simmer.
5. Simmer: Cover and reduce heat to low. Let it simmer for 45 minutes, or until beef is tender. Stir occasionally.
6. Add Peas: In the last 5 minutes of cooking, stir in the peas. Add salt and pepper to taste.
7. Prepare Pie Crusts: Preheat your oven to 425°F (220°C). Line a pie dish with one pie crust, pressing firmly against the bottom and sides.
8. Fill the Pie: Once the beef mixture is ready, pour it into the prepared pie dish, spreading it out evenly.
9. Top with Crust: Cover with the second pie crust. Seal the edges, and make a few slits in the top to allow steam to escape.
10. Egg Wash: Brush the top crust with a beaten egg for a golden finish.
11. Bake: Place the pie in the preheated oven and bake for 30-35 minutes, or until the crust is golden brown.
12. Cool: Remove the pot pie from the oven and let it cool for 10-15 minutes before serving.

Following these steps will ensure a rich and flavorful Beef Pot Pie every time!