Add frozen meatballs to a crockpot
Add cream of mushroom soup, beef broth, Worcestershire sauce, Steak sauce, and Dijon mustard
Season with salt, pepper, parsley flakes, onion powder, and minced garlic
Add chopped onion and stir everything together well
Cook on low for 4-6 hours
Boil 12 oz of egg noodles according to package directions
Add sour cream and cooked egg noodles to the crockpot and stir well
Top with dried parsley and serve
