01 - Pat the beef roast dry with paper towels. Season all sides generously with kosher salt and freshly ground black pepper.
02 - Heat olive oil in a large skillet over medium-high heat. Sear the roast for 3–4 minutes per side until a deep brown crust forms on all sides.
03 - Arrange carrots, potatoes, onion, garlic, and celery in an even layer at the bottom of the slow cooker.
04 - Place the seared roast on top of the vegetable bed.
05 - Pour beef broth and Worcestershire sauce over the roast and vegetables. Add rosemary, thyme, and bay leaves.
06 - Cover and cook on low setting for 8 hours, or until the beef is fork-tender and vegetables are completely cooked through.
07 - Remove and discard herb sprigs and bay leaves. Shred or slice the roast against the grain. Serve with vegetables and pan juices.