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Slow Cooker French Onion Meatballs Recipe

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4 from 61 reviews

This Slow Cooker French Onion Meatballs recipe combines savory frozen beef meatballs with rich French onion soup and caramelized onions, slow-cooked to perfection. Topped with melted Gruyere cheese, this comforting dish is perfect served over mashed potatoes, toasted French bread, or rice for an easy and delicious meal.

  • Total Time: 3 hours 40 minutes
  • Yield: 4 servings

Ingredients

Meatballs

  • 26 oz bag frozen beef meatballs

Vegetables

  • 1 large yellow onion, peeled and thinly sliced

Soup & Cheese

  • 2 cans (10.5 oz each) condensed French onion soup (Campbell’s brand preferred)
  • 1 cup shredded Gruyere cheese

Instructions

  1. Prepare: Gather all ingredients including the frozen beef meatballs, sliced yellow onion, French onion soup, and shredded Gruyere cheese.
  2. Add meatballs: Place the frozen meatballs into the insert of your slow cooker evenly.
  3. Add onion and soups: Add the thinly sliced onion and both cans of condensed French onion soup on top of the meatballs.
  4. Stir to combine: Stir the mixture gently inside the slow cooker to evenly distribute onions and soup around the meatballs.
  5. Cook: Cover the slow cooker with its lid and cook on LOW for 3 to 4 hours, or on HIGH for 1 to 2 hours. Stir the meatballs occasionally during cooking to prevent the sauce from burning or sticking.
  6. Add cheese: About 15 to 30 minutes before serving, sprinkle the shredded Gruyere cheese evenly over the meatballs. Replace the lid and continue cooking until the cheese has melted completely.
  7. Serve: Serve the French onion meatballs hot over your choice of mashed potatoes, toasted slices of French bread, or rice for a comforting meal.

Notes

  • Stirring occasionally helps prevent the sauce from burning on the slow cooker bottom.
  • For the best melting cheese, shred your own Gruyere rather than using pre-shredded.
  • This dish pairs wonderfully with creamy mashed potatoes or crusty bread to soak up the sauce.
  • Adjust cooking times based on your slow cooker’s heat settings and size.
  • You can substitute beef meatballs with turkey or vegetarian meatballs for a variation.
  • Author: ELLA
  • Prep Time: 10 minutes
  • Cook Time: 3 hours 30 minutes
  • Category: Main Course
  • Method: Slow Cooking
  • Cuisine: American