3In a large bowl, combine ground beef, breadcrumbs, egg, milk, chopped onion, bell pepper, ketchup, Worcestershire sauce, garlic powder, onion powder, paprika, salt & pepper. Mix well until fully combined.
4Divide the mixture evenly into your muffin tin, gently pressing each portion down.
5Mix the glaze ingredients (ketchup, brown sugar, mustard) in a small bowl and spoon a little over each meatloaf muffin.
6Bake for 20–25 minutes, or until cooked through and edges are slightly caramelized.
7Let cool for 5 minutes, garnish with parsley, and serve warm.