Made with convenient frozen meatballs and a rich mushroom gravy, these Crock Pot Salisbury Steak Meatballs are the perfect meal for busy days. With just a few simple steps, you'll have tender and flavorful meatballs that are perfect served over rice or creamy mashed potatoes!
Place the sliced mushrooms and onions in the bottom of a 6-quart crock pot. Then pour frozen meatballs over the top.
Add beef broth, gravy mix, Worcestershire sauce, ketchup, mustard, black pepper, and garlic in a medium bowl. Whisk until well combined and pour over meatballs.
Cover and cook on high for 2-3 hours or low for 5-6 hours.
In a small bowl, whisk cornstarch and water together. Pour over the meatballs and mix until well combined. Cook for ten minutes or until the gravy thickens.
*Nutrition information is an estimate. It may vary based on ingredients, brands, and changes in cooking methods listed in the recipe. If you need exact ingredient numbers, I recommend calculating them with your preferred nutrition calculator.