In small bowl, mix cheese and onions. Spoon slightly less than 1/4 cup cheese mixture in 1-inch-wide strip lengthwise down center of each rectangle to within 1/4 inch of each end. Fold dough in half lengthwise to form long strip; firmly press edges to seal. Twist strip 4 or 5 times; bring ends together to form ring and pinch to seal. Place on cookie sheet.