Easy Slow Cooker French Onion Meatballs

easy slow cooker french onion meatballs

Easy slow cooker french onion meatballs promise a crispy, golden, and full of flavor meal. I’ve made these dozens of times. The trick is to brown the meatballs first for a better texture. Try this 20-minute restaurant version. Check out my easy potsticker stir fry with fresh veggies and sauce for a great side. If you love recipes like this, you’ll also enjoy Easy Potsticker Stir Fry with Fresh Veggies and Sauce and Crispy Air Fryer Pumpkin Churros with Cinnamon Sugar.

Crispy golden slow cooker french onion meatballs with melted cheese and caramelized onions. Warm natural light shows rich sauce and golden texture. Photorealistic food photography.
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Why This Easy Slow Cooker French Onion Meatballs Is Pure Comfort

  • Crispy texture
  • Golden color
  • Full of flavor
  • Easy to make

What You'll Need for Easy Slow Cooker French Onion Meatballs

Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.

  • 1 lb ground beef
  • 1/2 lb ground pork
  • 1 cup breadcrumbs
  • 1 egg
  • 1 onion, finely chopped
  • 3 cloves garlic, minced
  • 2 cups beef broth
  • 1 jar marinara sauce
  • 1 cup shredded mozzarella
  • 1 tbsp dried Italian seasoning
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • Optional: Fresh basil
  • Optional: Grated Parmesan
  • Optional: Chopped parsley
Raw ingredients for easy slow cooker french onion meatballs. Ground beef, onion, breadcrumbs, garlic, and mozzarella. Measuring spoons and bowls visible. Bright even light. Flat lay on white marble surface.

📝 Ingredient Notes

  • Ground beef and pork: Combining both gives a better texture and flavor.
  • Breadcrumbs: Use fresh breadcrumbs for better binding.
  • Beef broth: Adding broth helps keep the meatballs moist.

🛒 Tools & Equipment I Recommend

Perfectly plated slow cooker french onion meatballs. Topped with fresh basil and extra cheese. White porcelain plate with sauce drizzled. Warm lighting shows rich texture.

How to Make Easy Slow Cooker French Onion Meatballs

  1. Mix meatballs: In a large bowl, mix ground beef, pork, breadcrumbs, egg, onion, garlic, seasoning, and salt. Form into 1.5-inch meatballs.
  2. Brown meatballs: Heat oil in a skillet over medium-high heat. Brown meatballs in batches for 2-3 minutes on each side. Set aside.
  3. Add to slow cooker: In a slow cooker, add broth, marinara sauce, and browned meatballs. Stir to coat. Cook on low for 4-6 hours.
  4. Add cheese: Stir in shredded mozzarella. Cover and let sit for 5 minutes to melt.
  5. Serve: Serve meatballs with warm crusty bread or on a bed of rice. Garnish with fresh herbs if desired.
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Cook's Tips for Perfect Easy Slow Cooker French Onion Meatballs

  • Best technique: Browning the meatballs first gives a better texture and richer flavor.
  • Common mistake and fix: If meatballs are too wet, add more breadcrumbs before forming.
  • Alternative method: You can also cook the meatballs in a skillet if you don’t have a slow cooker.
  • Best pairing: Serve with a fresh green salad and crusty bread for a complete meal.

Storing & Reheating Easy Slow Cooker French Onion Meatballs

Short-Term Storage

Store in an airtight container in the fridge. Store in an airtight container for up to 4 days. Make-ahead tip: Make the meatballs up to 2 days ahead and store in the fridge.

Freezing Easy Slow Cooker French Onion Meatballs

Freeze in a sealed container for up to 3 months.

How to Reheat Without Drying It Out

Oven: Reheat in a preheated oven at 350°F for 10-15 minutes. Microwave: Reheat in a microwave-safe dish for 1-2 minutes.

Recipe Notes

  • Chef tip: Browning the meatballs first adds a great texture and flavor.
  • Best substitution: Use ground turkey or a mix of beef and veal for a different flavor.
  • Make-ahead: Prepare the meatballs up to 2 days in advance and cook when ready.
  • Scaling: Double the recipe for a larger group or family dinner.
  • Troubleshooting: If the sauce is too thin, simmer it on the stove to reduce.

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Easy Slow Cooker French Onion Meatballs

Perfectly plated slow cooker french onion meatballs. Topped with fresh basil and extra cheese. White porcelain plate with sauce drizzled. Warm lighting shows rich texture.
⏱
Prep
15 min
🍳
Cook
6 hr
⏳
Total
6 hr 15 min
🍽
Serves
8 servings

Ingredients

Main Ingredients

  • 1 lb ground beef
  • 1/2 lb ground pork
  • 1 cup breadcrumbs
  • 1 egg
  • 1 onion, finely chopped
  • 3 cloves garlic, minced
  • 2 cups beef broth
  • 1 jar marinara sauce
  • 1 cup shredded mozzarella

Seasonings

  • 1 tbsp dried Italian seasoning
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1 tsp garlic powder
  • 1 tsp onion powder

Optional Toppings

  • Fresh basil
  • Grated Parmesan
  • Chopped parsley

Instructions

  1. Mix meatballs: In a large bowl, mix ground beef, pork, breadcrumbs, egg, onion, garlic, seasoning, and salt. Form into 1.5-inch meatballs.
  2. Brown meatballs: Heat oil in a skillet over medium-high heat. Brown meatballs in batches for 2-3 minutes on each side. Set aside.
  3. Add to slow cooker: In a slow cooker, add broth, marinara sauce, and browned meatballs. Stir to coat. Cook on low for 4-6 hours.
  4. Add cheese: Stir in shredded mozzarella. Cover and let sit for 5 minutes to melt.
  5. Serve: Serve meatballs with warm crusty bread or on a bed of rice. Garnish with fresh herbs if desired.

Notes

  • Chef tip: Browning the meatballs first adds a great texture and flavor.
  • Best substitution: Use ground turkey or a mix of beef and veal for a different flavor.
  • Make-ahead: Prepare the meatballs up to 2 days in advance and cook when ready.
  • Scaling: Double the recipe for a larger group or family dinner.
  • Troubleshooting: If the sauce is too thin, simmer it on the stove to reduce.

Storage

  • Fridge: Store in an airtight container for up to 4 days.
  • Freezer: Freeze in a sealed container for up to 3 months.
  • Oven reheat: Reheat in a preheated oven at 350°F for 10-15 minutes.
  • Microwave reheat: Reheat in a microwave-safe dish for 1-2 minutes.
  • Make ahead: Make the meatballs up to 2 days ahead and store in the fridge.

Nutrition Per Serving

  • Calories: 350
  • Protein: 25g
  • Fat: 18g
  • Carbs: 14g
  • Fiber: 2g
  • Sugar: 4g
  • Sodium: 800mg
  • Cholesterol: 85mg
  • Sat. Fat: 7g

Nutritional values are estimates only. Actual values may vary by brand and portion size.

Easy Slow Cooker French Onion Meatballs FAQs

Can I make easy slow cooker french onion meatballs ahead?

Yes, you can make the meatballs up to 2 days in advance and store them in the fridge. Cook them when ready.

Why did my easy slow cooker french onion meatballs turn out dry?

If the meatballs are too dry, it may be due to not enough moisture. Add more broth or breadcrumbs to the mixture next time.

Can I make easy slow cooker french onion meatballs in the oven?

Yes, you can bake them at 375°F for 25-30 minutes. Brush with sauce and top with mozzarella.

What is the best substitute for beef broth?

You can use chicken broth or vegetable broth as a substitute for beef broth.

Can I freeze easy slow cooker french onion meatballs?

Yes, you can freeze the cooked meatballs in a sealed container for up to 3 months. Reheat in the oven or microwave before serving.

A Warm Final Note

I can’t wait for you to try Easy Slow Cooker French Onion Meatballs and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out — I love hearing from you!

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