Prepare the Meatballs. In a bowl, combine ground meat, bread crumbs, finely chopped onion, minced garlic, salt, pepper, and Worcestershire sauce. Mix until well combined, then shape the mixture into bite-sized meatballs.
Bake to Perfection. Place the meatballs on a baking sheet lined with parchment paper. Bake in a preheated oven until browned and cooked through.
Make the Sauce. In a saucepan, combine ketchup, brown sugar, soy sauce, and additional seasonings if desired. Simmer the sauce until it thickens slightly.
Coat and Serve. Once the meatballs are cooked, toss them in the sauce until evenly coated. Skewer each meatball with a toothpick for easy serving.
Garnish and Enjoy. Transfer the saucy meatballs to a serving platter, sprinkle with chopped fresh parsley for a burst of color, and watch them disappear.