01 -
Set the oven temperature to 400°F (200°C) to prepare for baking.
02 -
In a large mixing bowl, thoroughly mix ground beef, diced onion, minced garlic, grated Parmesan, chopped parsley, salt, and black pepper until evenly incorporated.
03 -
Form the mixture into uniform meatballs approximately 1 inch in diameter to ensure even cooking.
04 -
Place the meatballs on a parchment-lined baking sheet, spacing evenly to allow heat circulation.
05 -
Bake in the preheated oven for 20 to 25 minutes until the internal temperature reaches 160°F and meatballs are cooked through.
06 -
Plate the meatballs and accompany with your preferred sauce for serving.