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Crockpot French Onion Meatballs: Set and Forget Dinner Idea


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  • Author: Penny Smith
  • Total Time: 6 hours 20 minutes
  • Yield: 46 servings 1x

Description

This cozy, set-and-forget dinner brings the rich flavors of French onion soup to tender, juicy meatballs. Perfect for busy weeknights or lazy weekends, the slow-cooked onions and savory beef create a meal that’s comforting, flavorful, and family-friendly.


Ingredients

Scale

For the Meatballs:

  • 1 ½ pounds ground beef

  • ½ cup breadcrumbs

  • ¼ cup grated Parmesan cheese

  • 2 cloves garlic, minced

  • 1 small onion, finely chopped

  • 1 large egg

  • 2 tablespoons fresh parsley, chopped

  • 1 teaspoon salt

  • ½ teaspoon black pepper

For the French Onion Sauce:

  • 3 large onions, thinly sliced

  • 2 tablespoons butter

  • 2 tablespoons olive oil

  • 1 tablespoon sugar

  • 3 cups beef broth

  • 1 teaspoon Worcestershire sauce

  • 1 teaspoon fresh thyme leaves (or ½ teaspoon dried thyme)

  • Salt and pepper to taste


Instructions

  • In a large mixing bowl, combine the ground beef, breadcrumbs, Parmesan cheese, minced garlic, finely chopped onion, egg, parsley, salt, and pepper. Mix gently until combined.

  • Form the mixture into medium-sized meatballs, about 1 ½ inches in diameter, and set aside.

  • In a large skillet over medium heat, melt the butter with olive oil. Add the sliced onions and sugar. Cook slowly, stirring frequently, until deeply caramelized, about 20–25 minutes.

  • Transfer the caramelized onions to the crockpot. Add beef broth, Worcestershire sauce, thyme, and season with salt and pepper. Stir to combine.

  • Place the meatballs into the crockpot, ensuring they are covered by the sauce.

  • Cover and cook on low for 6–8 hours, or on high for 3–4 hours, until meatballs are fully cooked and tender.

  • Serve meatballs and sauce over mashed potatoes, egg noodles, rice, or crusty bread. Garnish with parsley or Parmesan if desired.

Notes

  • Caramelize onions slowly to bring out maximum sweetness and flavor.

  • Avoid overmixing meat to keep meatballs tender.

  • Make meatballs ahead of time and refrigerate if needed.

  • Leftovers can be stored in the fridge or frozen for later use.

  • Prep Time: 20 minutes
  • Cook Time: 6–8 hours