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Mashed potatoes topped with slow cooker French onion meatballs, savory gravy, crispy onions, and herbs, served with green beans on a white plate.
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Slow Cooker French Onion Meatballs

Slow Cooker French Onion Meatballs with tender beef, caramelized onions, rich broth, and melted Gruyère for a hearty comforting dinner.
Course Main
Cuisine American
Keyword slow cooker french onion meatballs
Prep Time 10 minutes
Cook Time 6 hours 4 minutes
Total Time 14 minutes
Servings 6 servings
Calories 715kcal
Author Ksenia Prints

Equipment

  • Slow Cooker

Ingredients

  • 3 lbs frozen meatballs 48 oz
  • 2 large yellow onions peeled and thinly sliced
  • 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
  • 1 cup shredded Gruyère cheese
  • Fresh parsley and crispy fried onions, for garnish

Instructions

  • In a separate bowl, whisk together French onion soup, beef broth, gravy mix, and Worcestershire sauce until smooth.
  • Pour the liquid mixture over meatballs and onions, stirring gently to combine.
  • Cover and cook on LOW for 6 hours or HIGH for 4 hours, until onions are golden and tender, and meatballs are heated through.
  • Sprinkle shredded cheese over the top, cover, and let sit 5 minutes until cheese melts.
  • Garnish with fresh parsley and crispy onions before serving.

Notes

Ingredient Swaps:
• Cheese: Swiss, provolone, or mozzarella work as budget-friendly alternatives to Gruyère
• Meatballs: Homemade beef or turkey meatballs can replace frozen ones
• Gravy mix: Mix 1 tablespoon each of beef bouillon and cornstarch
• Soup: Use homemade French onion soup or add extra caramelized onions
• Broth: Bone broth or vegetable broth make suitable substitutes
 
 
 

Nutrition

Calories: 715kcal | Carbohydrates: 5g | Protein: 46g | Fat: 56g | Saturated Fat: 22g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 24g | Cholesterol: 188mg | Sodium: 658mg | Potassium: 813mg | Fiber: 1g | Sugar: 2g | Vitamin A: 230IU | Vitamin C: 5mg | Calcium: 274mg | Iron: 3mg