Slow Cooker French Onion Meatballs


Treat your taste buds to a burst of savory goodness with our Slow Cooker French Onion Meatballs recipe. This delectable dish combines the rich flavors of French onion soup with tender meatballs, creating a comforting and satisfying meal that’s perfect for any occasion. In this article, we’ll share an easy-to-follow recipe for Slow Cooker French Onion Meatballs, allowing you to enjoy all the deliciousness with minimal effort.


  • 1 lb ground beef
  • 1 packet French onion soup mix
  • 1/2 cup breadcrumbs
  • 1/4 cup milk
  • 1 egg
  • 1/2 cup grated Parmesan cheese
  • 2 tablespoons olive oil
  • 2 large onions, thinly sliced
  • 2 cups beef broth
  • 1/2 cup red wine optional
  • 1 tablespoon Worcestershire sauce
  • Salt and pepper to taste
  • Fresh thyme for garnish



  1. Meatball Mixture: In a large bowl, combine ground beef, French onion soup mix, breadcrumbs, milk, egg, and Parmesan. Form into meatballs.
  2. Brown Meatballs: Heat olive oil in a skillet over medium heat. Brown meatballs on all sides, then transfer to the slow cooker.
  3. Caramelize Onions: In the same skillet, cook onions until caramelized, about 10-15 minutes. Add to slow cooker on top of meatballs.
  4. Prepare Gravy: Mix beef broth, red wine if using, and Worcestershire sauce. Pour over meatballs and onions in the slow cooker.
  5. Cook: Set slow cooker to low for 6-8 hours or high for 3-4 hours. Season with salt and pepper.
  6.  Garnish and Serve: Sprinkle with fresh thyme before serving.
  7. Prep Time: 20 mins  Cooking Time: 6-8 hours  Total Time: 6 hrs 20 mins – 8 hrs 20 mins  Servings: 4
  8. Enjoy these Slow Cooker French Onion Meatballs as a heartwarming dish thats perfect for any occasion, offering a gourmet twist on classic flavors.

Serving Tips:

  1. Serve as a Main Dish: Enjoy Slow Cooker French Onion Meatballs as a satisfying main dish served over cooked pasta, rice, or mashed potatoes. The tender meatballs and savory onion gravy make for a hearty and comforting meal.
  2. Accompany with Crusty Bread: Serve crusty bread on the side to soak up the flavorful gravy from the meatballs. Sliced baguette or garlic bread pairs exceptionally well with the rich flavors of the dish.
  3. Add a Side Salad: Balance the richness of the meatballs with a crisp and refreshing side salad. A simple green salad with vinaigrette dressing or a cucumber and tomato salad adds a burst of freshness to the meal.
  4. Garnish with Fresh Herbs: Before serving, garnish the Slow Cooker French Onion Meatballs with freshly chopped parsley or thyme. The vibrant green herbs not only add color but also enhance the flavor of the dish with their aromatic notes.
  5. Pair with Red Wine: Complement the robust flavors of the meatballs with a glass of red wine, such as Merlot or Cabernet Sauvignon. The wine’s fruity and tannic characteristics marry well with the savory and earthy tones of the dish.

Storage Tips:

  1. Refrigerate Leftovers: Store any leftover Slow Cooker French Onion Meatballs in an airtight container in the refrigerator for up to 3-4 days. Make sure the meatballs are cooled to room temperature before refrigerating to prevent condensation.
  2. Reheat Before Serving: When ready to enjoy the leftovers, reheat the meatballs gently on the stovetop or in the microwave until heated through. You may need to add a splash of beef broth or water to the gravy to prevent it from becoming too thick.
  3. Freeze for Future Meals: If you have more leftovers than you can consume within a few days, consider freezing them for future meals. Place the cooled meatballs and gravy in a freezer-safe container or resealable freezer bags and freeze for up to 2-3 months.
  4. Thaw and Reheat: When ready to use frozen leftovers, thaw them overnight in the refrigerator. Reheat the meatballs and gravy in a saucepan over medium heat, stirring occasionally until heated through. Alternatively, you can reheat them in the microwave.
  5. Serve with Freshly Cooked Sides: When reheating leftovers, consider preparing fresh batches of pasta, rice, or mashed potatoes to serve alongside the meatballs. This ensures that every component of the meal is fresh and delicious.


  1. Can I use frozen meatballs instead of making them from scratch?
    • Yes, you can use frozen pre-cooked meatballs as a time-saving alternative. Simply brown the frozen meatballs in a skillet before adding them to the slow cooker with the caramelized onions and other ingredients.
  2. Can I make this recipe in an Instant Pot instead of a slow cooker?
    • Yes, you can adapt this recipe for an Instant Pot. Sauté the onions and garlic using the “Sauté” function, then add the remaining ingredients and cook on high pressure for 10-12 minutes. Allow for a natural pressure release before serving.
  3. Can I substitute ground beef with another type of meat?
    • Yes, you can use ground turkey, chicken, or pork instead of ground beef for the meatballs. Keep in mind that different meats may alter the flavor and texture slightly, but they will still pair well with the French onion flavors.
  4. What can I serve with Slow Cooker French Onion Meatballs besides pasta or rice?
    • You can serve the meatballs over mashed potatoes, polenta, or even creamy risotto for a comforting meal. For a lighter option, try serving them with roasted vegetables or a side of crusty bread.
  5. Can I double the recipe for a larger crowd?
    • Yes, you can easily double or triple the ingredients to feed a larger group. Make sure to use a larger slow cooker or divide the ingredients between two slow cookers if necessary. Adjust the cooking time accordingly to ensure the meatballs are cooked through.


Indulge in a comforting and flavorful meal with our Slow Cooker French Onion Meatballs recipe. With its rich and savory flavors and tender meatballs, this dish is sure to become a favorite among family and friends. Whether served over pasta, rice, or mashed potatoes, each bite is a delicious reminder of the comforting flavors of French onion soup. So fire up your slow cooker, gather your ingredients, and get ready to savor the deliciousness of this classic comfort food dish.