- (Optional) In a skillet over medium heat, brown the ground beef and onion until no longer pink. Drain any excess grease. 
- Transfer the beef mixture to your slow cooker. Add garlic, cream of mushroom soup, beef broth, Worcestershire sauce, paprika, salt, and pepper. Stir to combine. 
- Cover and cook on low for 6–7 hours or high for 3–4 hours. 
- About 20 minutes before serving, cook the egg noodles separately in salted water until tender. Drain and set aside. 
- Turn off the slow cooker. Stir in sour cream until smooth and creamy. 
- Add the noodles and gently mix until fully coated. 
- Serve hot, garnished with fresh parsley if desired.