Form the meatballs: In a bowl, mix beef, egg, parmesan, garlic powder, salt, pepper, and parsley. Roll into 12–14 small balls.
Brown the meatballs: Heat olive oil in a skillet over medium heat. Add meatballs and sear until golden on all sides, about 6–8 minutes. Remove and set aside.
Make the garlic butter: In the same pan, melt butter and add minced garlic. Cook for 30 seconds until fragrant. Stir in lemon juice and parsley.
Sauté the cabbage: In a separate skillet, heat olive oil, add cabbage and salt, and fry 5–6 minutes until soft but not mushy.
Combine: Return meatballs to the garlic-butter pan and toss to coat.
Serve: Plate the cabbage noodles, top with meatballs and sauce, and sprinkle with extra parmesan.