01 - Preheat the oven to 325°F.
02 - Season the beef cubes evenly with salt and pepper.
03 - Heat olive oil in a large oven-safe pot over medium-high heat. Brown the beef cubes in batches on all sides, then remove and set aside.
04 - Add onions, carrots, parsnips, and celery to the pot and sauté for 5 minutes until softened. Stir in minced garlic and cook for an additional minute.
05 - Stir in tomato paste and cook for another minute to enhance flavor.
06 - Pour in red wine, scraping the bottom of the pot to release browned bits. Simmer for 2 minutes to reduce slightly.
07 - Return beef to the pot. Add halved potatoes, beef stock, fresh rosemary, thyme, bay leaves, and Worcestershire sauce if using. Stir to combine.
08 - Bring to a gentle simmer, cover with lid, and transfer to the preheated oven.
09 - Cook for 2 to 2.5 hours until beef is fork-tender and vegetables are soft.
10 - Remove herb sprigs and bay leaves. Adjust seasoning as needed and serve immediately.