Pat the beef chuck roast dry with a paper towel and season all sides with sea salt and black pepper.
Heat the olive oil in a heavy-bottomed pot or Dutch oven over medium-high heat and sear the beef until a deep golden crust forms on all sides.
Remove the beef from the pot and set aside, then add the halved cremini mushrooms, sliced carrots, and pearl onions to the remaining fat.
Sauté the vegetables for 5 minutes until the onions are translucent, then stir in the minced garlic and tomato paste for 60 seconds.
Pour in the dry red wine to deglaze the pan, using a wooden spoon to scrape up all the flavorful browned bits from the bottom.
Return the beef to the pot along with the beef bone broth and fresh thyme sprig, bringing the liquid to a gentle simmer.
Cover the pot tightly and reduce heat to low, braising for approximately 90 minutes or until the beef is tender enough to break with a fork.