Caramelized Onion Meatloaf is a comforting, hearty dish that elevates the classic meatloaf by adding the deep, rich sweetness of slowly cooked onions. While traditional meatloaf is known for its simplicity and home-style appeal, the addition of caramelized onions transforms it into something more flavorful and memorable. The onions melt into the meat, creating layers of savory-sweet flavor that make every slice tender, moist, and satisfying.
This recipe is perfect for family dinners, make-ahead meals, or cozy weekends at home. It brings together familiar pantry ingredients with a simple technique that makes a big difference. Whether served with mashed potatoes, roasted vegetables, or a fresh salad, Caramelized Onion Meatloaf feels both nostalgic and refined at the same time.
Why I Love This Recipe
I love this recipe because it takes a humble comfort food and makes it special without making it complicated. The caramelized onions add moisture and natural sweetness, keeping the meatloaf juicy and flavorful. It is also incredibly versatile, reheats beautifully, and tastes even better the next day, making it ideal for leftovers and meal prep.
Why This Is a Must-Try Dish
- Rich, savory flavor enhanced by sweet caramelized onions
- Moist and tender texture every time
- Simple ingredients with elevated results
- Perfect for family meals and leftovers
- Customizable with different meats and seasonings
Time, Servings and Nutrition
- Preparation Time: 20 minutes
- Cooking Time: 60 minutes
- Total Time: 1 hour 20 minutes
- Servings: 6
Approximate Calories:
- 380–420 calories per serving
Course: Main Course
Cuisine: American
Ingredients
For the Caramelized Onions
- 2 large onions, thinly sliced
- 2 tablespoons olive oil or butter
- ½ teaspoon salt
For the Meatloaf
- 500 g (1 lb) ground beef (or beef and pork blend)
- 1 cup breadcrumbs
- 1 large egg
- ½ cup milk
- 2 cloves garlic, minced
- 2 tablespoons Worcestershire sauce
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon dried thyme or Italian seasoning
- ⅓ cup ketchup (plus extra for topping, optional)
Cooking Directions
- Slowly caramelize the onions until golden and sweet.
- Mix meatloaf ingredients gently in a bowl.
- Shape the meat mixture into a loaf.
- Bake until cooked through and lightly glazed.
- Rest before slicing and serving.
Step-by-Step Preparation Method
- Heat olive oil or butter in a skillet over medium-low heat. Add sliced onions and salt.
- Cook onions slowly, stirring occasionally, for 20–25 minutes until soft and caramelized. Set aside to cool slightly.
- Preheat oven to 180°C (350°F).
- In a large bowl, combine ground meat, breadcrumbs, egg, milk, garlic, Worcestershire sauce, salt, pepper, herbs, ketchup, and caramelized onions.
- Mix gently until just combined. Do not overmix.
- Shape mixture into a loaf and place in a greased loaf pan or on a lined baking tray.
- Spread extra ketchup over the top if desired.
- Bake for 55–60 minutes, or until internal temperature reaches 71°C (160°F).
- Let meatloaf rest for 10 minutes before slicing.
How to Serve This Recipe
Serve Caramelized Onion Meatloaf warm, sliced thick, alongside mashed potatoes, roasted vegetables, or green beans. It also pairs well with gravy or an extra drizzle of pan juices. Leftover slices make excellent sandwiches with bread, mustard, and lettuce.
Recipe Tips
- Cook onions low and slow for the best flavor
- Let onions cool slightly before mixing into meat
- Avoid overmixing to keep the meatloaf tender
- Rest the meatloaf before slicing to prevent crumbling
- Use a meat thermometer for accurate doneness
Variations (Detailed)
- Turkey Caramelized Onion Meatloaf
Use ground turkey instead of beef and add a little extra milk for moisture. - Cheesy Meatloaf
Mix shredded cheddar or mozzarella into the meat mixture. - BBQ-Style Meatloaf
Replace ketchup with barbecue sauce for a smoky flavor. - Gluten-Free Meatloaf
Use gluten-free breadcrumbs or oats. - Herb-Forward Version
Add fresh parsley, thyme, or rosemary for extra aroma.
Freezing and Storage
- Refrigeration:
Store cooked meatloaf in an airtight container for up to 4 days. - Freezing (Cooked):
Wrap slices or whole loaf tightly and freeze for up to 3 months. - Freezing (Uncooked):
Shape meatloaf, wrap well, and freeze for up to 2 months. Thaw before baking. - Reheating:
Reheat in the oven or microwave until warmed through.
Special Equipment Needed
- Large skillet
- Large mixing bowl
- Loaf pan or baking tray
- Parchment paper or foil
- Meat thermometer (recommended)
Conclusion
Caramelized Onion Meatloaf is a comforting classic made even better with the addition of rich, sweet onions. It is simple to prepare, deeply flavorful, and perfect for both everyday dinners and make-ahead meals. With its tender texture and savory-sweet taste, this recipe proves that a traditional meatloaf can still feel special and satisfying.
Caramelized Onion Meatloaf
Caramelized Onion Meatloaf is a comforting, hearty dish that elevates the classic meatloaf by adding the deep, rich sweetness of slowly cooked onions.
Ingredients
For the Caramelized Onions
For the Meatloaf
Instructions
-
Heat olive oil or butter in a skillet over medium-low heat. Add sliced onions and salt.
-
Cook onions slowly, stirring occasionally, for 20–25 minutes until soft and caramelized. Set aside to cool slightly.
-
Preheat oven to 180°C (350°F).
-
In a large bowl, combine ground meat, breadcrumbs, egg, milk, garlic, Worcestershire sauce, salt, pepper, herbs, ketchup, and caramelized onions.
-
Mix gently until just combined. Do not overmix.
-
Shape mixture into a loaf and place in a greased loaf pan or on a lined baking tray.
-
Spread extra ketchup over the top if desired.
-
Bake for 55–60 minutes, or until internal temperature reaches 71°C (160°F).
-
Let meatloaf rest for 10 minutes before slicing.

