Stuffed Rice Balls

Name: Stuffed Rice Balls
Ingredients: 1/4 cup extra-virgin olive oil; 1 pound ground beef; 1/2 cup chopped onion; Salt; 1/4 cup grated carrots; 1/4 cup finely diced celery; One 14-ounce can Italian plum tomatoes (preferably San Marzano) with juice, crushed; 1 teaspoon tomato paste; 1/2 teaspoon crushed hot red pepper; 1 cup fresh or frozen peas; 5 cups Chicken Stock (page 74), canned reduced-sodium chicken broth or water; 2 tablespoons extra-virgin olive oil; 2 cups short-grain rice, such as Carnaroli or Arborio; 4 large eggs; 2 cups grated Pecorino Romano cheese; 2 eggs; 1 cup all-purpose flour; 2 cups fine, dry bread crumbs; 2/3 cup vegetable oil; 1/3 cup olive oil, plus extra for frying