Place a large pot over medium-high heat and add the ground beef. Cook until fully browned, breaking it up with a spoon as it cooks. Drain off any excess fat.
Add the onion, garlic, and mushrooms to the pot. Cook for about 5 minutes until the vegetables begin to soften.
Stir in the Worcestershire sauce, paprika, salt, and pepper.
Pour in the beef broth and bring the mixture to a boil. Add the egg noodles, reduce the heat to a simmer, and cook for 8 to 10 minutes, stirring occasionally, until the noodles are tender.
Remove the pot from the heat. Stir in the sour cream until the sauce turns smooth and creamy.
Sprinkle with fresh parsley right before serving.