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Slow Cooker French Onion Meatballs Recipe

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4.3 from 8 reviews

This Slow Cooker French Onion Meatballs recipe combines tender meatballs with a rich, savory French onion sauce for an easy and comforting meal. Slow-cooked onions and meatballs simmer in a flavorful broth with French onion soup, Worcestershire sauce, and brown gravy mix, then topped with melted Gruyère cheese and garnished with fresh parsley and crispy fried onions for a perfect finish. Ideal for effortless entertaining or family dinners.

Ingredients

Meatballs and Onions

  • 3 lbs frozen meatballs (48 oz)
  • 2 large yellow onions, peeled and thinly sliced

Soup and Sauce Mixture

  • 2 cans condensed French onion soup (10.5 oz each)
  • 2 cups beef broth
  • 1 packet brown gravy mix (or 1 tablespoon beef broth and 1 tablespoon cornstarch)
  • 2 tablespoons Worcestershire sauce

Toppings and Garnishes

  • 1 cup shredded Gruyère cheese
  • Fresh parsley, for garnish
  • Crispy fried onions, for garnish

Instructions

  1. Prepare the sauce mixture: In a separate bowl, whisk together the condensed French onion soup, beef broth, brown gravy mix (or alternative cornstarch slurry), and Worcestershire sauce until the mixture is smooth and well combined.
  2. Combine meatballs and onions: Place the frozen meatballs and thinly sliced onions into the slow cooker. Pour the prepared liquid mixture over them and gently stir to ensure everything is evenly coated without breaking the meatballs.
  3. Slow cook the dish: Cover the slow cooker and cook on LOW for 6 hours or on HIGH for 4 hours. This allows the onions to become golden and tender and heats the meatballs thoroughly, melding the flavors.
  4. Add cheese topping: Sprinkle the shredded Gruyère cheese over the meatballs and onion mixture in the slow cooker. Cover again and let it sit for 5 minutes to allow the cheese to melt completely.
  5. Garnish and serve: Before serving, top the dish with fresh parsley and crispy fried onions for added texture and flavor. Serve hot and enjoy this comforting meal.

Notes

  • You can use homemade meatballs instead of frozen if preferred.
  • If a packet of brown gravy mix is unavailable, mix 1 tablespoon beef broth with 1 tablespoon cornstarch as a slurry alternative.
  • Gruyère cheese can be substituted with Swiss or mozzarella if desired.
  • For a stronger onion flavor, caramelize the onions slightly before adding to the slow cooker.
  • Leftovers keep well refrigerated for up to 3 days and can be reheated gently in a skillet or microwave.

Find it online: https://glowcooks.com/slow-cooker-french-onion-meatballs-recipe/