01 - Combine beef tips with kosher salt, black pepper, and dried thyme, coating evenly.
02 - Transfer seasoned beef to the slow cooker. Top with chopped onion and minced garlic.
03 - Whisk together beef broth, Worcestershire sauce, tomato paste, and flour in a medium bowl until completely smooth.
04 - Pour gravy mixture over beef and vegetables. Stir gently to incorporate. Cover and cook on low setting for 6-7 hours or on high for 3-4 hours until beef reaches fork-tender consistency.
05 - Taste the finished dish and adjust salt and pepper as desired.
06 - Plate over mashed potatoes, noodles, or rice. Garnish with fresh chopped parsley if using.