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Slow Cooker French Onion Meatballs

These Slow Cooker French Onion Meatballs are a delicious and comforting dish that combines the rich flavors of caramelized onions and savory beef meatballs. Perfect for a hearty meal, they can be served over pasta, rice, or even crusty bread.
Prep Time 15 minutes
Cook Time 6 hours
Total Time 6 hours 15 minutes
Course Main Course
Cuisine French-American
Servings 4 People
Calories 350 kcal

Equipment

  • 1 slow cooker
  • 1 mixing bowl
  • 1 skillet optional for browning
  • 1 spoon or spatula
  • 1 set measuring cups and spoons

Ingredients
  

  • 1 ½ pounds ground beef (or turkey) For a healthier version, consider using ground turkey or chicken.
  • 1 cup breadcrumbs
  • 1 large egg
  • ¼ cup grated Parmesan cheese
  • 2 cloves garlic, minced
  • 1 teaspoon onion powder
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon dried thyme
  • 4 large onions, thinly sliced
  • 2 tablespoons olive oil
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 1 teaspoon sugar
  • 1 cup beef broth
  • 1 cup French onion soup (canned or homemade)
  • 1 tablespoon soy sauce
  • 1 tablespoon chopped fresh thyme (or dried thyme)
  • 1 cup Swiss cheese, shredded For topping.

Instructions
 

  • In a mixing bowl, combine the ground beef, breadcrumbs, egg, Parmesan cheese, garlic, onion powder, salt, pepper, and thyme. Mix until well combined.
  • Shape the mixture into meatballs, about 1 to 1.5 inches in diameter.
  • Optional: In a skillet over medium heat, heat 1 tablespoon of olive oil and brown the meatballs for 3-4 minutes on each side until golden.
  • In the slow cooker, add the sliced onions, 2 tablespoons of olive oil, salt, pepper, and sugar. Stir to combine.
  • Place the meatballs on top of the onion mixture in the slow cooker.
  • In a separate bowl, mix together the beef broth, French onion soup, soy sauce, and thyme. Pour this mixture over the meatballs and onions.
  • Cover and cook on low for 6 hours, or until the meatballs are cooked through and the onions are caramelized.
  • In the last 15 minutes of cooking, sprinkle the shredded Swiss cheese over the top and cover to allow it to melt.
  • Serve hot over pasta, rice, or with crusty bread, spooning the onion sauce over the meatballs.

Notes

For a healthier version, consider using ground turkey or chicken.
You can adjust the seasoning according to your preference or add other herbs like parsley for garnish before serving.
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat thoroughly before serving.