Crock Pot French Onion Beef Meatballs: Cheesy, Savory Slow-Cooked Perfection 🧅🧀🍽️

When classic French onion soup meets juicy beef meatballs, magic happens. This Crock Pot French Onion Beef Meatballs recipe brings all the rich, savory flavor of caramelized onions, slow-simmered broth, and melty cheese—without the fuss. Just set it, forget it, and return to a warm, bubbling pot of goodness.

Whether you’re feeding a hungry crowd or just craving something cozy and indulgent, this easy slow cooker dish will become a go-to favorite.

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Why I Love This Recipe

This dish is the definition of set-it-and-forget-it comfort. I love it because:

• It’s packed with slow-cooked flavor and real ingredients.
• The cheesy topping is gooey and irresistible.
• It’s a one-pot meal with little cleanup.
• The recipe is versatile—serve over rice, noodles, or crusty bread.

It hits all the same cozy notes as Cajun chicken sausage gumbo or easy turkey wings, with that special French onion twist.

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Ingredients You’ll Need

• 1.5 lbs ground beef
• 1 cup breadcrumbs
• 1 egg
• 1 packet French onion soup mix
• 2 cups beef broth
• 1 large onion, thinly sliced
• 1 tbsp Worcestershire sauce
• 1 cup shredded mozzarella cheese
• 1 cup shredded Swiss or Gruyère cheese
• Fresh parsley, chopped, for garnish

✅ Pro Tip: Swiss or Gruyère adds that signature French onion flavor, but mozzarella melts like a dream—use both!

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How to Make Crock Pot French Onion Beef Meatballs

1. Make the Meatballs

In a mixing bowl, combine:

• Ground beef
• Breadcrumbs
• Egg
• Half of the French onion soup mix

Mix until just combined, then form into 1½-inch meatballs.

2. Layer the Crock Pot

Spread the sliced onions on the bottom of the crock pot. Place the meatballs gently on top in a single layer.

3. Make the Broth Mixture

In a bowl, whisk together:

• 2 cups beef broth
• 1 tbsp Worcestershire sauce
• Remaining soup mix

Pour this mixture over the meatballs and onions.

4. Cook

Cover and cook on:

• LOW for 4–5 hours, or
• HIGH for 2–3 hours

You’ll know they’re ready when the onions are soft and the meatballs are fully cooked.

5. Cheese It Up

In the last 15 minutes, sprinkle shredded mozzarella and Swiss or Gruyère cheese over the meatballs. Cover again and let the cheese melt to gooey perfection.

6. Serve

Top with fresh chopped parsley and serve hot!

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Tips for Success

• Use lean ground beef to avoid greasy broth.
• Slice the onions thinly so they melt into the broth.
• Let it sit covered after adding cheese to trap heat and help melt evenly.
• For extra indulgence, toast some baguette slices with melted cheese and serve on the side.

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Serving Suggestions

Serve these meatballs:

• Over mashed potatoes, egg noodles, or buttered rice
• With a side of crusty bread to soak up all the broth
• Next to Mexican chicken and rice casserole for a comfort food feast
• With sheet pan quesadillas if you’re feeding a crowd

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Storage and Leftovers

• Refrigerate: Store in an airtight container for up to 4 days.
• Freeze: Cool completely and freeze in a freezer-safe bag or container for up to 3 months.
• Reheat: Gently warm in the microwave or on the stove. Add a splash of broth if needed.

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More Recipes You’ll Love

Love cozy, cheesy, and crowd-pleasing meals? Try these next:

• Easy Turkey Wings
• Cajun Chicken Sausage Gumbo
• Dorito Casserole

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Final Thoughts

Crock Pot French Onion Beef Meatballs are everything you want in a weeknight dinner—easy, satisfying, and absolutely packed with flavor. The slow-cooked onions, rich broth, and melted cheese turn humble meatballs into a showstopping meal.

Tried it? Tag @ChefManiac and let us know how you served them! And don’t forget to follow Chef Maniac for more cozy, cheesy slow-cooker favorites.