01 -
Preheat oven to 375°F and lightly grease a mini muffin tin to prevent sticking.
02 -
In a large mixing bowl, combine ground beef, breadcrumbs, milk, egg, onion, garlic, salt, pepper, Worcestershire sauce, 1/4 cup of the ketchup, and mustard. Mix until homogeneous using clean hands or a sturdy spoon.
03 -
Portion approximately 1 ounce of the meat mixture, flatten in your palm, place a cheese cube in the center, then enclose the cheese and roll into a ball. Arrange each ball in the prepared muffin tin cup.
04 -
Stir together the remaining 1/4 cup ketchup with a small squeeze of mustard. Spoon a thin layer of sauce on top of each meatloaf bite.
05 -
Bake in the center of the oven for 18 to 22 minutes until browned and cooked through, ensuring an internal temperature of 160°F.
06 -
Allow meatloaf bites to cool in the tin for 5 minutes before removing. Garnish with chopped parsley if desired and serve warm.