Season the beef cubes with salt and pepper.
In a skillet, brown the beef on all sides over medium heat.
Transfer the browned beef to the crock pot.
Add the chopped onion and minced garlic to the pot.
Layer in the sliced carrots and cubed potatoes.
Pour in the beef broth and Worcestershire sauce.
Sprinkle dried thyme over the ingredients.
Stir gently to combine all ingredients.
Cover and cook on low for 8 hours or high for 4 hours.
Check seasoning before serving, adjusting salt and pepper as needed.