In a mixing bowl, combine ground beef, diced onion, bread crumbs, garlic powder, salt, pepper, chopped parsley, and egg. Use your hands to mix thoroughly until well combined. Form the mixture into 4 oz-sized meatballs. Tip: You can use cooking gloves or simply wash your hands thoroughly.
Once each meatball is formed, create a hole in the center with your thumb and place 3 mozzarella pearls inside. Carefully cover the pearls with the meat mixture.
Preheat a griddle over medium-high heat. Add a drizzle of olive oil. Place the meatballs on the griddle and cook until crispy on all sides.
Meanwhile, on another side of the griddle or on a separate skillet over medium heat, add a bit more olive oil and sauté the diced onion until translucent.
Pour in the red wine and let it reduce for about a minute. Then, add the store-bought marinara sauce and garlic powder. Let the sauce simmer for approximately 8 minutes while the meatballs continue to cook.
Once the meatballs are crispy and cooked through, transfer them to the sauce and let them simmer together for about 5 minutes. Optionally, baste the meatballs with the sauce while they simmer.
To serve, plate the cooked spaghetti noodles in bowls. Top with the meatballs and sauce mixture. Garnish with grated Parmesan cheese, torn basil leaves, and a sprinkle of parsley.
Pair with your favorite red wine, put on some Dean Martin tunes, and enjoy your delicious meal!
