Sauté the Veg (Optional but recommended): For the best texture, lightly sauté the onions, peppers, and mushrooms in a little oil for 5 minutes until softened. Let them cool slightly. This ensures the peppers are tender and the mushrooms release their moisture into the meat.
The Mix: In a large mixing bowl, combine the mince, breadcrumbs, beaten egg, and 3 generous tablespoons of Burger Seasoning blend. Add the cooled vegetable mixture and the Worcestershire sauce.
Combine: Using your hands, gently mix everything until just combined. Tip: Do not over-mix, or the meatloaf will become dense.
Shape: Grease a standard loaf tin or shape the mixture into a free-form log on a baking tray lined with parchment paper.
Glaze & Bake: Brush the top with tomato ketchup (which caramelises beautifully with the brown sugar notes in your seasoning). Bake at 180°C (160°C fan) for 55–60 minutes.
Rest: This is the most important step! Let the meatloaf rest for 10–15 minutes before slicing. This allows the juices to redistribute so the slices stay intact and juicy.