Ground Beef Empanadas Picadillo

Name: Ground Beef Empanadas (Picadillo)
Ingredients: 1 tablespoon vegetable oil; 8 ounces ground beef chuck; 1/2 teaspoon salt; Pinch freshly ground black pepper; 1/2 cup drained green pitted olives, chopped; 1/2 cup raisins; 1 carrot, peeled and finely chopped; 1/2 white onion, finely chopped; 1 cup canned tomato puree or sauce; Nonstick cooking spray, for greasing; One 1-pound package frozen puff pastry; All-purpose flour, for dusting; 2 large eggs, beaten with 1 tablespoon water