Crockpot French Onion Meatloaf With Melted Swiss Cheese

Okay, so you know how meatloaf can sometimes be… kinda boring? Well, not this one. This Crockpot French Onion Meatloaf is packed with flavor and topped with melty Swiss cheese.

It’s got that deep onion soup taste, but in a cozy meatloaf form. And the slow cooker makes everything so juicy and soft. I love how easy it is—just toss it in and let it coo

And that cheese? Oh wow. It melts all over the top like a warm blanket. You’ll want seconds… maybe thirds

So yeah, if you’re craving comfort food with a twist, this is it. Grab your Crockpot, and let’s make something amazing today.

Why You’ll Love This Recipe

• Super Juicy and Flavor-Packed: Slow cooking allows the flavors to meld, creating an incredibly tender meatloaf.
• Minimal Effort, Maximum Flavor: No need to babysit this meatloaf—your crockpot does the work!
• Inspired by French Onion Soup: The deep, caramelized onion flavor and gooey melted cheese make this meatloaf extra special.
• Perfect for Meal Prep: Make it ahead and enjoy leftovers all week!
• Crowd-Pleasing Comfort Food: A guaranteed family favorite with rich, savory flavors.

Required Kitchen Tools

Before you get started, make sure you have the following kitchen tools:

• Slow Cooker (Crockpot) – 6-quart or larger
• Large Skillet – for caramelizing onions
• Mixing Bowls – for combining ingredients
• Wooden Spoon or Silicone Spatula – for mixing
• Measuring Cups & Spoons – for accurate ingredient portions
• Meat Thermometer – to check doneness
• Parchment Paper or Foil – to line the crockpot for easy cleanup
• Cheese Grater – for freshly grating Swiss or Gruyère cheese

Ingredients

Here’s what you’ll need for this rich and flavorful slow-cooked meatloaf:

For the Caramelized Onions

• 2 large sweet onions, thinly sliced – The base of that signature French onion flavor.
• 2 tablespoons salted butter – Helps the onions caramelize beautifully.
• 1 tablespoon olive oil – Adds richness and prevents burning.
• 1 teaspoon sea salt – Draws out moisture for better caramelization.
• ½ teaspoon coarse black pepper – Balances the sweetness of the onions.
• 1 teaspoon granulated sugar – Enhances the natural sweetness of the onions.

For the Meatloaf

• 1 ½ pounds ground beef (80/20 blend preferred) – A bit of fat keeps it juicy.
• ½ cup Italian-style breadcrumbs – Adds texture and absorbs moisture.
• ¼ cup whole milk – Ensures a tender meatloaf.
• 1 large egg – Binds everything together.
• 1 packet (1 oz) French onion soup mix – The secret shortcut to deep, umami-packed flavor!
• 1 tablespoon Worcestershire sauce – Adds savory depth.
• 1 tablespoon cooking sherry (optional but recommended) – Enhances the oniony, slightly sweet notes.

For the Topping

• 6-8 slices Swiss, Gruyère, or provolone cheese – Melts into a gooey, golden layer.
• Fresh thyme sprigs (for garnish) – Adds a fragrant finishing touch.

Step-by-Step Instructions

1. Caramelize the Onions

Caramelized onions are the star of this dish, adding rich, deep flavor to the meatloaf. Here’s how to make them perfectly:

1. Heat the Butter and Oil: In a large skillet over medium heat, melt 2 tablespoons of butter with 1 tablespoon of olive oil.
2. Add the Onions: Stir in the sliced onions, coating them evenly with the butter-oil mixture.
3. Season & Cook Slowly: Sprinkle in 1 teaspoon sea salt, ½ teaspoon coarse black pepper, and 1 teaspoon sugar. Stir well. Cook for 30-40 minutes, stirring occasionally, until the onions turn deep golden brown.
4. Deglaze the Pan (Optional): If the onions stick, splash in 1 tablespoon cooking sherry or water and scrape up any browned bits for extra flavor.
5. Set Aside: Once caramelized, remove from heat and allow to cool slightly before adding to the meatloaf mixture.

2. Prepare the Meatloaf Mixture

1. In a large mixing bowl, combine:
   • Ground beef (1 ½ lbs)
   • Italian breadcrumbs (½ cup)
   • Milk (¼ cup)
   • Egg (1 large)
   • French onion soup mix (1 packet)
   • Worcestershire sauce (1 tablespoon)
   • Half of the caramelized onions (save the rest for topping)
2. Mix Gently: Using a wooden spoon or your hands, mix until just combined. Do not overmix—this keeps the meatloaf tender.
3. Shape the Meatloaf: Form the mixture into a loaf shape that fits inside your crockpot.
4. Line the Crockpot: Place a sheet of parchment paper or foil in the crockpot for easy cleanup.
5. Place the Meatloaf in the Crockpot: Transfer the shaped meatloaf onto the lined surface.

3. Slow Cook the Meatloaf

1. Cover and Cook: Set the crockpot to LOW for 5-6 hours or HIGH for 3-4 hours until the internal temperature reaches 160°F (71°C).
2. Drain Excess Liquid: Carefully remove any grease or liquid that collects at the bottom of the crockpot before adding cheese.

4. Add the Melted Swiss Cheese Topping

1. Layer the Remaining Caramelized Onions: Once the meatloaf is fully cooked, spread the reserved caramelized onions evenly over the top.
2. Add the Cheese: Arrange 6-8 slices of Swiss, Gruyère, or provolone cheese over the meatloaf.
3. Melt the Cheese: Cover the crockpot with the lid and let the heat melt the cheese for 5-10 minutes. If you want a golden-brown, bubbly cheese topping, transfer the meatloaf to a baking sheet and broil in the oven for 2-3 minutes.
4. Garnish: Sprinkle with fresh thyme sprigs for an elegant touch.

Serving Suggestions

This savory, cheesy meatloaf pairs beautifully with classic sides:

• Mashed Potatoes & Gravy: A creamy, buttery side balances the richness.
• Roasted Vegetables: Try garlic butter green beans, roasted carrots, or asparagus.
• Buttery Dinner Rolls: Perfect for soaking up the juices.
• French Onion Soup-Inspired Sauce: Drizzle with a light beef gravy or au jus for extra flavor.

Storage and Meal Prep Tips

How to Store Leftovers

• Refrigerator: Store leftover meatloaf in an airtight container for 3-4 days.
• Freezer: Slice and wrap individual portions in plastic wrap, then place in a freezer-safe bag. Freeze for up to 3 months.

How to Reheat

• Microwave: Heat slices for 30-45 seconds on a microwave-safe plate.
• Oven: Cover with foil and bake at 350°F (175°C) for 10-15 minutes.
• Stovetop: Place slices in a covered skillet over low heat until warmed through.

French Onion Meatloaf FAQs

Can I make this meatloaf ahead of time?

Yes! Assemble the meatloaf mixture a day in advance, store it in the fridge, and cook it when ready.

What type of cheese works best?

Swiss or Gruyère gives the best melty, nutty flavor, but provolone is a great alternative.

Can I use ground turkey instead of beef?

Absolutely! Just reduce the cook time slightly since turkey tends to dry out faster.

What if I don’t have a crockpot?

You can bake this meatloaf at 350°F (175°C) for 50-60 minutes in a standard oven.

g – Approximate)

Nutrient	Amount
Calories	420 kcal
Protein	32g
Carbohydrates	18g
Fat	26g
Saturated Fat	12g
Cholesterol	115mg
Sodium	870mg
Fiber	1g
Sugar	5g
Calcium	210mg
Iron	3.2mg

Note: Nutrition values may vary based on ingredient brands and portion sizes.

Conclusion

This Crockpot French Onion Meatloaf With Melted Swiss Cheese takes comfort food to a whole new level! With deeply caramelized onions, rich umami flavors, and gooey melted cheese, it’s a meal that’s both hearty and sophisticated—yet incredibly easy to make.

Perfect for busy weeknights or cozy weekend dinners, this slow-cooked meatloaf is a crowd-pleaser the whole family will love. Whether paired with mashed potatoes, roasted veggies, or fresh bread, it’s a dish that’s bound to become a regular on your dinner table.