Heat oven to 350°F. Spray cookie sheet with nonstick cooking spray. Beat egg in small bowl. Add water and mustard; mix well. In shallow dish, combine cheese, sesame seed and garlic powder; mix well.
Unroll dough; separate into 12 breadsticks. Dip each breadstick in egg mixture; coat with cheese mixture. Twist each breadstick several times. Place 1 inch apart on sprayed cookie sheet. Firmly press down ends.
Bake at 350°F. for 14 to 19 minutes or until golden brown. Serve warm.