If baking chicken nuggets in the oven, pre-heat to 375 degrees. If cooking nuggets in frying pan, add oil to pan and turn heat to medium high. In a bowl stir Worcestershire sauce into beaten egg whites and mix well. In another shallow bowl or baking dish, mix together flour, cornstarch, salt and pepper. Dip each piece of chicken in egg white mixture, then into the flour mixture. If baking nuggets in the oven, place chicken pieces on a baking sheet. Lightly brush nuggets with olive oil. Bake for about 20 minutes or until chicken is thoroughly cooked. If frying nuggets, place chicken pieces in pan with hot vegetable oil and cook on each side until golden brown and cooked through, about 7-10 minutes. Serve hot and dip in your favorite sauces.