Preheat the broiler and arrange an oven rack about six inches beneath the broiler.
Spray a large baking sheet with Nonstick Cooking Spray (to taste). In a large mixing bowl, add the Ground Turkey (1 pound), White Onion (1/4 cup), Salt (1/2 teaspoon), Ground Black Pepper (1/2 teaspoon), Italian Seasoning (1 teaspoon), Panko Breadcrumbs (1/3 cup), Worcestershire Sauce (1 teaspoon), and Egg (1).
Combine using clean hands. Careful to not overmix! Roll the meat into golf ball-sized balls and arrange them on the baking sheet with at least 2-inches between each of them. Broil the meatballs for about 5 minutes, until the tops begin to brown and crisp.
Turn off the broiler and set the oven to 350 degrees F (180 degrees C). Continue cooking the meatballs for another 5 minutes, or until they are cooked through.
To make the“eyeballs" cut the Provolone Cheese Slices (8 ounce) into 1-inch wide small circles.
Stack a provolone circle and then an Black Olives (6 ounce) atop the meatball. Skewer a toothpick through to keep it intact.
Heat the Marinara Sauce (24 ounce) up, and spread 1 cup of the marinara onto a serving platter.
Arrange the meatballs on the platter and dribble more marinara on top. Serve warm or at room temperature.