Season the beef chunks evenly with sea salt and black pepper.
Heat the olive oil in a heavy-bottomed pot or Dutch oven over medium-high heat.
Sear the beef in the pot until deeply browned on all sides, then remove and set aside.
Add the pearl onions, sliced carrots, and halved mushrooms to the same pot, sautéing until they begin to soften and brown.
Stir in the minced garlic and tomato paste, cooking for one minute until the mixture is fragrant.
Pour in the dry red wine to deglaze the pot, using a wooden spoon to scrape up the flavorful browned bits from the bottom.
Return the beef to the pot and add the beef bone broth and dried thyme.
Bring the liquid to a gentle boil, then reduce the heat to low, cover with a lid, and simmer for 90 minutes until the beef is fork-tender.
Garnish the finished stew with fresh chopped parsley before serving.