Method
Preheat the oven
Preheat oven to 375°F. Line a baking sheet with parchment paper. Alternatively, lightly grease a loaf pan with olive oil.
Prepare the aromatics
Finely dice the onion and mince the garlic. For a softer onion texture, sauté the onion in the tablespoon of olive oil until softened, then add the garlic briefly. Let cool before combining with the meat. You can also incorporate the aromatics raw.
Combine the ingredients
In a large mixing bowl, combine: Ground beef Ground lamb Eggs Gluten-free breadcrumbs Onion Garlic Italian seasoning Salt Black pepper Worcestershire sauce, if using Ketchup or tomato paste Olive oil, if not already used for sautéing Using your hands or a large spoon, gently mix until everything is evenly distributed. Do not overmix. Excessively working the meat can produce a dense, tough meatloaf.
Shape the meatloaf
Transfer the meat mixture to the prepared baking sheet. Form into a rectangular loaf approximately: 9 inches long 5 inches wide 3 inches high Keep the loaf relatively uniform in thickness so it cooks evenly. A free-form loaf allows more of the exterior to caramelize than a traditional loaf pan.
Prepare the glaze
In a small bowl, combine: ⅓ cup ketchup 1 tbsp maple syrup 1 tsp Dijon mustard, if using Small splash of vinegar or lemon juice, if using Mix until smooth.
Glaze the meatloaf
Brush approximately half the glaze evenly over the top and sides of the meatloaf. Reserve the remaining glaze.
Bake
Place the meatloaf on the center rack. Bake at 375°F for approximately 45–60 minutes. After 30–35 minutes, brush the remaining glaze over the meatloaf. Continue baking until the thickest part reaches an internal temperature of 160°F. Cooking time will vary depending on loaf thickness.
Rest and slice
Remove the meatloaf from the oven. Allow it to rest for 10 minutes. This helps the juices redistribute and makes slicing easier. Cut into thick slices and serve.
