Season the beef chuck roast with salt, black pepper, garlic powder, onion powder, and dried thyme. Rub the spices evenly over the meat.
Heat the olive oil in a large skillet over medium-high heat. Sear the chuck roast on all sides until browned, about 3-4 minutes per side.
In the slow cooker, combine the carrots, potatoes, chopped onion, and minced garlic.
Place the seared roast on top of the vegetables in the slow cooker.
In a separate bowl, mix together the beef broth, Worcestershire sauce, and bay leaf. Pour this mixture over the roast and vegetables.
Cover the slow cooker with its lid and set it to cook on low for 8 hours.
Once cooking is complete, remove the bay leaf, and let the pot roast rest for a few minutes before slicing.
Serve with vegetables and broth.