Preheat oven to 400°F (200°C).

In a large bowl, combine ground beef, breadcrumbs, Parmesan, minced garlic, egg, and a good pinch of salt and pepper. Gently mix until combined—don’t overwork the meat.

Roll the mixture into roughly 1-inch meatballs.

Heat a skillet over medium heat and add 2 tablespoons of butter. When it foams, add the meatballs in a single layer without crowding.

Brown the meatballs on all sides, about 5–7 minutes total, turning carefully so they retain shape.

Transfer browned meatballs to a baking dish and pour any remaining butter from the skillet over the meatballs.

Bake in the preheated oven for 15–20 minutes until internal temperature reaches 160°F (71°C) and juices run clear.

Remove, let rest for 3–5 minutes, then sprinkle with chopped parsley and serve.