turke meatballs

• 1 small onion, grated
• 3 garlic cloves, minced
• 1 large egg
• 1/4 cup dried bread crumbs
• 3 tablespoons ketchup
• 1/4 cup chopped fresh Italian parsley leaves
• 1/4 cup grated Parmesan
• 1/4 cup grated Pecorino Romano
• 1 teaspoon salt
• 1/4 teaspoon ground black pepper
• 1 pound ground dark turkey meat
• 3 tablespoons olive oil