Move over, boring meatloaf—this flavor-packed French Onion Meatloaf deserves a permanent spot in your dinner rotation.
Featured Comment
Delicious meatloaf recipe! I’ve made this twice now. This time in addition to substituting almond flour for the bread crumbs, I used a packet of Knorr’s French Onion soup mix. Very tasty.
– fran
This French Onion Meatloaf is a must-try. Sweet, caramelized onions and gooey cheese elevate classic meatloaf, and cooking it in the slow cooker yields tender, flavorful results every time.
Key Ingredients
These ingredients give the meatloaf its rich, comforting French onion character:
Sweet onions and butter – slowly caramelized to create a savory-sweet base.
Ground beef – lean ground beef keeps the dish moist without excess grease.
Onion soup mix – adds concentrated onion and savory notes.
Red wine and Worcestershire – deepen the sauce’s flavor; substitute beef broth if you prefer.
Swiss cheese – melts beautifully on top and pairs perfectly with the onions.
Cook’s Notes and Variations
Choose lean beef: Use lean ground beef (around 7% fat) to avoid greasy onions and a heavy loaf.
No wine? Replace red wine with beef broth or a mix of balsamic vinegar and water for similar depth.
Caramelize in the slow cooker: If you prefer a hands-off method, cook the onions on LOW for 10–12 hours with butter, salt, pepper, and a touch of sugar, stirring occasionally until golden, then add the meatloaf.
Cheese options: Swap Swiss for Gruyere, Provolone, or Mozzarella if desired.
Make ahead: Shape the loaf in advance and refrigerate; place it on the onions when ready to cook.
How to Serve:
Serve slices of French Onion Meatloaf with mashed potatoes, baked potatoes, mac and cheese, steamed rice, or simple roasted vegetables. Spoon the caramelized onions and sauce over each serving for the best flavor.
Leftovers reheat well and make excellent meatloaf sandwiches.
French Onion Meatloaf Recipe
Pin
Equipment
-
Slow cooker – 6 quart or larger (oval)
Ingredients
For the Onions
- 4 large sweet onions, sliced
- 4 tablespoons unsalted butter
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon brown sugar
For the Meatloaf
- 2 pounds ground beef
- 1 cup breadcrumbs
- 1 teaspoon Italian seasoning
- ½ cup whole milk
- 1 large egg
- 1 oz. packet Lipton onion soup mix
- ½ cup red wine
- 2 tablespoons Worcestershire sauce
- 6-8 slices Swiss cheese
- Fresh thyme, for garnish (optional)
Instructions
-
In a large skillet over medium heat, melt the butter and add the sliced sweet onions, salt, pepper, and brown sugar. Cook 25–30 minutes, stirring often, until the onions are soft and golden. Transfer the caramelized onions to the bottom of the slow cooker and pour the red wine and Worcestershire sauce over them.
-
In a large bowl, combine the ground beef, breadcrumbs, Italian seasoning, milk, egg, and French onion soup mix. Mix until evenly combined.
-
Shape the mixture into an oval loaf that fits inside the slow cooker. Avoid packing it too tightly to prevent a dense texture.
-
Gently place the loaf on top of the onions in the slow cooker.
-
Cover and cook on LOW for about 5 hours.
-
After 5 hours, lay 6–8 slices of Swiss cheese across the top, cover, and cook 10 more minutes or until the cheese is melted.
-
Garnish with fresh thyme if desired and let the meatloaf rest 5 minutes before slicing to help it hold together.
-
Slice and serve with the caramelized onions and sauce. Serve directly from the slow cooker or transfer to a platter.
Nutrition
Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.
More Meatloaf Recipes
Lipton Onion Meatloaf is a savory, easy option. Slow Cooker Meatloaf and Slow Cooker Turkey Meatloaf are great hands-off meals for busy nights. For a complete dinner, try Meatloaf and Baked Potatoes or a Complete Meatloaf Dinner.