01 - Pat the beef chuck roast dry with paper towels and season all sides evenly with salt and black pepper.
02 - Heat olive oil in a large skillet over medium-high heat and sear the beef on all sides until browned, approximately 2 to 3 minutes per side.
03 - Place the carrot chunks, potato chunks, sliced celery, and onion at the bottom of the slow cooker.
04 - Position the seared beef roast on top of the vegetables inside the slow cooker.
05 - Sprinkle minced garlic, dried thyme, and dried rosemary evenly over the beef, then add bay leaves.
06 - Pour the beef broth and Worcestershire sauce over the contents in the slow cooker.
07 - Cover and cook on LOW for 8 hours, until beef is fork-tender and vegetables are fully cooked.
08 - Remove bay leaves, shred or slice the beef, and serve together with the vegetables and cooking juices.