Crockpot French Onion Meatloaf with Melted Swiss Cheese

Author: Mia Martinez
Total Time: 8 hours 15 minutes (4 hours active, 4 hours slow cooking)
Servings: 6-8

Introduction

Transform classic meatloaf into a rich, comforting masterpiece with this Crockpot French Onion Meatloaf. Slow-cooked with caramelized sweet onions and topped with gooey Swiss cheese, this dish combines the deep flavors of French onion soup with hearty meatloaf for an unforgettable meal. Perfect for busy weeknights or cozy Sunday dinners, the crockpot does most of the work while filling your home with irresistible aromas.


Ingredients

For the Caramelized Onions

  • 3-4 large sweet onions, thinly sliced
  • 4 tablespoons salted butter
  • 1 tablespoon olive oil
  • 1 teaspoon sea salt
  • 1 teaspoon sugar (optional, enhances caramelization)
  • 1/4 teaspoon black pepper

For the Meatloaf

  • 2 lbs ground beef (80/20 blend for juiciness)
  • 1/2 cup breadcrumbs
  • 1/4 cup grated Parmesan cheese
  • 2 large eggs, beaten
  • 2 tablespoons Worcestershire sauce
  • 1 tablespoon Dijon mustard
  • 2 teaspoons garlic powder
  • 1 teaspoon onion powder
  • 1 teaspoon dried thyme
  • 1/2 teaspoon smoked paprika

For Topping

  • 6 slices Swiss cheese
  • 1/2 cup beef broth
  • Fresh thyme or parsley for garnish

Instructions

Step 1: Caramelize the Onions (1 hour)

  1. In a large skillet, melt butter and olive oil over medium-low heat.
  2. Add sliced onions, salt, pepper, and sugar (if using). Stir to coat.
  3. Cook for 45-60 minutes, stirring occasionally, until deep golden brown and jammy.

Step 2: Prepare the Meatloaf (15 minutes)

  1. In a large bowl, combine ground beef, breadcrumbs, Parmesan, eggs, Worcestershire sauce, Dijon mustard, garlic powder, onion powder, thyme, and paprika. Mix gently (don’t overwork).
  2. Shape into a loaf slightly smaller than your crockpot (to allow space for onions).

Step 3: Assemble & Slow Cook (4 hours on HIGH or 6-8 hours on LOW)

  1. Spread half the caramelized onions in the crockpot.
  2. Place the meatloaf on top, then cover with remaining onions.
  3. Pour beef broth around (not over) the loaf to keep moist.
  4. Cover and cook until internal temperature reaches 160°F (71°C).

Step 4: Add Cheese & Serve (5 minutes)

  1. Top meatloaf with Swiss cheese slices, cover until melted (2-3 minutes).
  2. Garnish with fresh herbs and serve with crusty bread or mashed potatoes.

Conclusion

This French Onion Meatloaf reimagines comfort food with luxurious depth of flavor. The slow-cooked onions melt into savory sweetness, while Swiss cheese adds a creamy finish. Effortless yet impressive, it’s a guaranteed family favorite.

Pro Tip: For a crispy exterior, broil the cheese-topped meatloaf for 2-3 minutes after slow cooking. Enjoy the rich, hearty flavors of French onion soup in every bite!

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