In a large bowl, mix together the ground beef, breadcrumbs, Parmesan cheese, bell pepper, onion, olives, mozzarella cheese, garlic powder, Worcestershire sauce, Italian seasoning, salt, and black pepper.
Form the mixture into 1-inch meatballs and place on a parchment-lined baking sheet.
Bake for 20 minutes, or until the meatballs are cooked through.
Serve warm with your favorite dipping sauce.
Interesting Facts
These spooky Halloween meatballs can be served as an appetizer or a main dish.
Adding olives and mozzarella cheese to the mix makes these meatballs especially flavorful and unique.
These meatballs can be frozen and reheated for a quick and easy meal.