Slow Cooker Salisbury Steak Meatballs are a comforting and flavorful dish made with tender meatballs cooked in a rich, savory gravy. This easy-to-make recipe involves combining frozen meatballs with a blend of beef broth, gravy mix, onion soup mix, ketchup, and Worcestershire sauce, then thickening the gravy with a cornstarch slurry. Serve these delicious meatballs over egg noodles or mashed potatoes for a hearty meal that everyone will love.
Spray the insert of the slow cooker with nonstick cooking spray. Add the frozen meatballs into the slow cooker.
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 to coat.
Cover with the lid and cook on LOW heat for 5 hours.
When the cook time is complete, mix together the cornstarch and cold water together in a small bowl with a fork.
Add the cornstarch slurry into the crockpot and mix well. Cook for an additional 10 minutes on high until the gravy has thickened.
Serve the meatballs over egg noodles or mashed potatoes. Garnish with chopped parsley to serve.