Combine parmesan cheese, pepper and garlic powder. Unfold pastry sheets onto cutting board. Brush lightly with egg white; sprinkle each sheet with 1/4 of the cheese mixture. Lightly press into pastry, turn over; repeat. Cut each sheet into 12 (1-inch) strips; twist.
Place on ungreased cookie sheet and bake in 350 degrees F (175 degrees C) oven for 15 minutes or until golden brown.