01 - Pat the beef chuck roast dry with paper towels and season generously with salt and black pepper on all sides.
02 - Heat olive oil in a large skillet over medium-high heat and sear the roast on all sides until evenly browned, about 3 to 4 minutes per side.
03 - Arrange carrots, potatoes, celery, and chopped onion at the bottom of the slow cooker.
04 - Place the seared beef roast on top of the layered vegetables in the slow cooker.
05 - Sprinkle minced garlic, rosemary, thyme, and place bay leaves over the roast and vegetables.
06 - Combine beef broth and Worcestershire sauce and pour evenly over the roast and vegetables.
07 - Cover and cook on LOW for 8 hours or until the beef is very tender and easily shreds with a fork.
08 - Remove bay leaves and herb stems, then slice or shred the beef roast and serve with the cooked vegetables and cooking juices.