Preheat your oven to 375°F (190°C).

In a large bowl, mix together the ground beef, breadcrumbs, ketchup, egg, onion, garlic powder, salt, and black pepper until fully combined.

Grease a muffin tin with non-stick spray or oil.

Scoop the meat mixture into the muffin tin cups, filling each one about 3/4 of the way full.

If using cheese, sprinkle a small amount on top of each meatloaf cup before baking.

Bake the meatloaf cups in the preheated oven for 20-25 minutes, or until they reach an internal temperature of 160°F (70°C).

Let the meatloaf cups cool for a few minutes before carefully removing them from the muffin tin.

Garnish with chopped parsley if desired and serve warm.