01 -
Spray the insert of the slow cooker with nonstick cooking spray.
02 -
Dump the frozen meatballs into the slow cooker.
03 -
In a mixing bowl, whisk together the beef broth, brown gravy mix, onion soup mix, ketchup, and Worcestershire sauce until well combined. Pour over the frozen meatballs and stir everything together.
04 -
Cover with the lid and cook on LOW heat for 5-6 hours.
05 -
Mix the cornstarch and cold water in a small bowl. Stir the slurry into the crockpot and allow it to cook for an additional 10 minutes until the gravy thickens.
06 -
Serve the Salisbury steak meatballs over mashed potatoes or egg noodles and garnish with chopped parsley.