Pat the beef stew meat dry with a paper towel and season evenly with sea salt and black pepper.
Heat the extra virgin olive oil in a large heavy-bottomed pot over medium-high heat.
Add the beef to the pot and sear until deeply browned on all sides, then remove the beef and set it aside on a plate.
Add the diced onion, sliced carrots, and sliced celery to the same pot, sautéing for 5 minutes until the vegetables begin to soften.
Stir in the minced garlic and tomato paste, cooking for 1 minute until the mixture is fragrant and the paste has darkened slightly.
Return the seared beef and any accumulated juices to the pot, then pour in the beef bone broth, dried thyme, and dried rosemary.
Bring the liquid to a gentle boil, then immediately reduce the heat to low and cover the pot with a tight-fitting lid.
Simmer the stew for 45 to 60 minutes, or until the beef is fork-tender and the broth has thickened into a rich consistency.