Pat the beef chuck roast dry and season evenly with half of the sea salt and black pepper.
Heat the olive oil in a small Dutch oven or heavy-bottomed pot over medium-high heat.
Sear the beef until a deep golden-brown crust forms on all sides, then remove and set aside on a plate.
Add the diced onion, celery, and sliced carrots to the same pot, sautéing for 4-5 minutes until the vegetables begin to soften.
Stir in the minced garlic and cook for 60 seconds until fragrant.
Pour in the dry red wine to deglaze the pot, using a wooden spoon to scrape up the browned bits from the bottom.
Return the beef to the pot and add the chopped parsnip, beef broth, thyme, and rosemary.
Bring the liquid to a gentle boil, then immediately reduce the heat to low and cover with a tight-fitting lid.
Simmer for 2.5 to 3 hours, or until the beef is completely tender and pulls apart easily with a fork.
Remove the herb sprigs and season the sauce with the remaining sea salt and black pepper before serving.