Creating Gordon Ramsay Beef Stroganoff can be a seamless experience if you follow these straightforward steps:

1. Cook the Noodles: Begin by cooking the egg noodles according to the package instructions. Drain and set aside.

2. Sauté the Beef: In a large skillet, heat the olive oil over medium-high heat. Add the sliced beef and season with salt and pepper. Sear until browned, then remove from the pan and set aside.

3. Sauté the Aromatics: In the same skillet, add chopped onions and minced garlic, cooking until softened and fragrant, about 2-3 minutes.

4. Add Mushrooms: Include the sliced mushrooms to the mixture and cook until they are tender and browned, approximately 5-7 minutes.

5. Create the Sauce: Stir in the Dijon mustard and Worcestershire sauce, allowing the flavors to meld for about 1 minute.

6. Add Beef Stock: Pour in the beef stock and bring the mixture to a gentle simmer. Allow it to cook for about 5 minutes for the flavors to deepen.

7. Incorporate Sour Cream: Lower the heat and stir in the sour cream. Mix well until the sauce is creamy and heated through, ensuring it does not boil to avoid curdling.

8. Combine Beef with Sauce: Return the browned beef to the skillet, stirring to coat it in the luscious sauce. Cook for an additional 2-3 minutes until everything is thoroughly warmed.

9. Adjust Seasoning: Taste the sauce and adjust the seasoning with more salt and pepper if necessary.

10. Serve: Finally, plate the beef stroganoff over the cooked noodles, garnishing with freshly chopped parsley for a burst of color.