In a large bowl combine sautéed onion, ground pork, ground beef, egg, mayonnaise, garlic powder, salt and nutmeg. Form small meatballs, about 35-40.
1 lb. ground pork, 1 lb. ground beef, 1 egg, 2 Tbsp. mayonnaise, 1/2 tsp. garlic powder, 1/2 tsp. salt, 1/8 tsp. nutmeg