01 - Coat beef cubes evenly with salt, pepper, and dried thyme.
02 - Place seasoned beef in slow cooker. Top with chopped onion and minced garlic.
03 - Whisk together beef broth, Worcestershire sauce, tomato paste, and flour until smooth in a medium bowl.
04 - Pour liquid mixture over beef and vegetables. Stir gently to distribute evenly.
05 - Cover and cook on low for 6-7 hours or on high for 3-4 hours until beef is fork-tender and gravy has thickened.
06 - Taste gravy and adjust salt and pepper as desired.
07 - Serve over mashed potatoes, noodles, or rice. Garnish with fresh parsley if desired.