Ingredients Meat & Poultry Beef Recipes Ground Beef Recipes Kathleen's Meatballs 4.0 (3) Add your rating & review By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on June 3, 2018 Print Rate It Share Share Tweet Pin Email Yield: 3 dozen Using the finest pecorino romano (sheep's milk) cheese and a food processor for some of the prep set this simple meatball recipe apart. Ingredients ½ cup milk 1 cup fresh breadcrumbs 1 onion, coarsely chopped 10 garlic cloves 4 pounds ground sirloin beef 4 large eggs, slightly beaten 1 cup fresh parsley, chopped 2 cups freshly grated Locatelli cheese Directions Preheat oven to 400 degrees. In a small bowl, combine the milk, breadcrumbs, and 1/2 cup water; set aside until softened. In the bowl of a food processor, combine the onion and garlic. Process until very finely chopped; transfer to a large bowl along with the beef, eggs, breadcrumb mixture, parsley, and cheese. Using your hands, mix until well combined. Measure the meat mixture into 1/4-cup-sized balls. Transfer to a roasting pan, and bake for 15 minutes, turn, and bake for 15 more minutes. Remove, drain, and set aside. Rate it Print