01 - 
                Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.
              
              
              
                02 - 
                In a large mixing bowl, combine ground beef, breadcrumbs, chopped onion, garlic, egg, salt, pepper, and Italian seasoning. Mix until just combined.
              
              
              
                03 - 
                Shape the meat mixture into small balls, about 1 to 1.5 inches in diameter, and place them on the prepared baking sheet.
              
              
              
                04 - 
                Bake the meatballs for 20 to 25 minutes until cooked through and lightly browned. Internal temperature should reach 160°F (70°C).
              
              
              
                05 - 
                While the meatballs are baking, warm the ketchup in a small pot over low heat, stirring occasionally.
              
              
              
                06 - 
                Transfer the cooked meatballs to a serving plate and drizzle with warm ketchup until evenly coated.
              
              
              
                07 - 
                Serve the meatballs hot. Enjoy on their own, with pasta, in sandwiches, or with salad.