Ingredients

• 2 lbs (900 g) ground beef
• 1 cup breadcrumbs (panko or regular)
• 2 large eggs, lightly beaten
• 1 cup shredded mozzarella (plus extra for topping)
• ½ cup grated Parmesan cheese
• 1 tbsp Worcestershire sauce
• 1 tsp garlic powder
• 1 tsp onion powder
• 1 tsp dried thyme
• 1 tsp salt
• ½ tsp black pepper
• 2 tbsp olive oil
• 2 large onions, thinly sliced
• 2 tbsp butter
• 1 cup beef broth

Instructions

1. Caramelize onions: Heat olive oil and butter in a skillet over medium heat. Add sliced onions and cook slowly until golden brown (20–25 minutes). Pour in beef broth, simmer 5 minutes until slightly reduced. Set aside.
2. Make meatloaf mix: In a bowl, combine ground beef, breadcrumbs, eggs, mozzarella, Parmesan, Worcestershire, garlic powder, onion powder, thyme, salt, and pepper. Mix until just combined.
3. Shape & bake: Preheat oven to 375°F (190°C). Shape mixture into a loaf and place in a greased pan. Spread half the caramelized onions on top.
4. Bake: Bake for 40–45 minutes. Remove, top with remaining onions and mozzarella. Return to oven 10 minutes until cheese is bubbly and golden.
5. Serve: Rest 10 minutes before slicing. Pair with mashed potatoes, roasted veggies, or crusty bread.

Notes