01 -
Set the oven to 375°F. Line a rimmed baking sheet with parchment paper or lightly oil it to prevent sticking.
02 -
In a large bowl, mix ground beef, breadcrumbs, milk, egg, salt, pepper, garlic powder, onion powder, oregano, Worcestershire sauce, and 0.5 cup marinara sauce until just combined to maintain tenderness.
03 -
Divide the mixture evenly into six portions. Shape each into a compact oval approximately 4 inches in length. Place loaves on the prepared baking sheet spacing about 1 inch apart.
04 -
Brush or spoon the remaining 0.25 cup marinara sauce over the tops of each mini loaf. Evenly sprinkle shredded mozzarella cheese over the sauce.
05 -
Bake in the preheated oven for 22 to 25 minutes, or until the internal temperature reaches 160°F and the cheese is melted and lightly golden. Let rest for 5 minutes before serving.