Slow Cooker Onion Meatballs made with a rich gravy flavored with onions, garlic, worcestershire & tomato sauce, served over egg noodles or mashed potatoes for a heart dinner!

Combining beef both, onions, tomato sauce, and Worcestershire sauce creates a savory sauce that enhances the meatballs beautifully. With minimal prep time and a slow cooker doing the work, these meatballs and gravy are great for anyone looking to enjoy a hearty meal with ease.
Highlights of this Crockpot Meatball Recipe
- This recipe offers a convenient option for busy weeknights. With frozen meatballs, preparation time is minimal. Cooking in a slow cooker allows the flavors to meld beautifully and frees up time for other tasks!
- The combination of onions, garlic, and spices creates layers of flavor. The use of Worcestershire sauce and Dijon mustard adds a delicious tang, while using beef broth as the base adds richness to the sauce.
- These meatballs are so versatile, they pair well with various sides such as rice, pasta, or mashed potatoes. This makes it suitable for different palates and preferences.
Crockpot Onion Meatball Ingredients
Meatballs: You need 26-oz of frozen meatballs, use your favorite brand or whatever you have on hand.
Onions: For subtle sweet flavor, use 2 onions, cut into rings.
Tomato sauce: Add tomato sauce to create a thick sauce.
Worcestershire sauce: Use 2 TBSP of Worcestershire for a tangy taste.
Dijon mustard: Dijon mustard will add a sharp, slightly spiced flavor to the sauce.
Seasonings: You need oregano, onion powder, minced garlic, as well as salt and pepper.
Gravy: The base of the sauce is beef broth combined with one .87-oz packet of brown gravy, and 5 TBSP of water.

What size Crockpot Should I use?
Ideally, a 7-8 qt crock pot should be used for this recipe. You can use a 5 qt crockpot, but I suggest you mix the sauce separately, then add the meatballs and pour the sauce over the meatballs. It will be difficult to mix it all if you add both simultaneously.
How long are crock pot meatballs good for?
Slow Cooker Onion Meatballs can be stored in the refrigerator for up to 3-4 days.
If frozen, they maintain their quality for about three months. Always ensure proper storage in airtight containers.

Slow Cooker Onion Meatball Recipe
Ingredients
- 26 oz frozen meatballs
- 2 onions cut into rings
- 2 TBSP tomato sauce
- 2 TBSP Worcestershire sauce
- 1 TBSP Dijon mustard
- 1 tsp oregano
- 1 tsp onion powder
- 3 cloves minced garlic
- 1 tsp salt and pepper
- 1 ½ cups beef broth
- .87 oz brown gravy packet
- 5 TBSP water
Instructions
- Prep: Slice the onions into thin rings.
- Assemble: Combine the frozen meatballs, onions, tomato sauce, Worcestershire sauce, Dijon mustard, oregano, onion powder, garlic, salt, pepper, and beef broth into an 8-quart crock pot.
- In a separate small bowl whisk the brown gravy packet with 5 TBSP of water, pour this mixture over the ingredients in the crock pot. Stir everything together to combine.
- Cook: Put the lid on and cook for 6 hours on low heat. Once cooked, serve meatballs on top of egg noodles or mashed potatoes. Enjoy!
Notes
Nutrition
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Variations of this Slow Cooker Meatball Recipe
There are several ways to customize the Slow Cooker Onion Meatballs for different tastes and dietary preferences.
Different Meats: Substituting frozen meatballs with turkey, chicken, or plant-based options can create a lighter dish. Each option will introduce a unique flavor profile
Sauce Variations: For a spicier kick, add 1-2 tsp of red pepper flakes or hot sauce. A BBQ sauce base can give a sweeter, smokier flavor if preferred.
Vegetable Additions: Incorporate vegetables such as bell peppers, mushrooms, or zucchini. This adds texture and nutrients while enhancing flavor.

More meatball dinner recipes here:
- Give these sweet and sour meatballs a try, they are so delicious. With a few simple ingredients and a crockpot, you’ll have a flavorful dish ready in no time!
- Hosting a party? Make these Bacon Wrapped Meatballs for a delicious appetizer with sweet & savory flavors!
- Enjoy your favorite Swedish dinner with our recipe for Copycat Ikea Swedish Meatballs. Made easily at home with, no trip to the store needed!
- These crockpot cranberry meatballs can be served as an appetizer or main dish, try them and see just how good they are for yourself!
- Another great weeknight dinner is our Sheet Pan BBQ Meatballs. A healthy, delicious dish that is ready in less than an hour!
- Our recipe for teriyaki pineapple meatballs is a favorite in our house. They could not be easier to make and everyone devours them quickly.
Slow Cooker Onion Meatballs are an easy to make meal that is loaded with rich, savory flavors. These meatballs and gravy can be served over mashed potatoes or egg noodles for a complete and filling meal.










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