Brown the Beef: Heat vegetable oil in the pot over medium-high heat. Add the beef stew meat and cook until browned on all sides, about 5 minutes. Remove the beef from the pot and set aside.
Saute Vegetables: In the same pot, add onion, carrots, celery, and garlic. Cook until the vegetables are softened, about 5-7 minutes.
Deglaze the Pot: Pour in the beef broth and Worcestershire sauce, scraping up any browned bits from the bottom of the pot.
Simmer: Return the beef to the pot. Bring to a boil, then reduce heat to low. Cover and simmer for 1.5 to 2 hours, or until the beef is tender.
Cook Noodles: In a separate pot, cook the egg noodles according to package instructions until al dente. Drain and set aside.
Combine: Add the cooked noodles to the pot with the beef and broth. Stir gently to combine and simmer for an additional 5-10 minutes to blend flavors.
Season: Season with salt and pepper to taste. Adjust seasoning as needed.
Serve: Ladle the beef and noodles into bowls. Garnish with chopped parsley if desired. Serve hot and enjoy!