Empanadas

Name: Empanadas
Ingredients: 1 onion, minced; 1/4 green bell pepper, finely chopped; 1 pound extra-lean ground beef; 1/2 teaspoon ground cumin; 1/4 teaspoon paprika; Salt and freshly ground black pepper; 3 tablespoons olive oil; 1/2 cup water; 1 boiled egg, finely chopped; 10 pitted green olives, finely chopped; 2 (17-ounce) packages frozen puff pastry; Flour, for dusting; 1 egg white