In a small bowl, dissolve yeast in warm milk. In a large bowl, combine 1 egg, honey, mashed potatoes, butter, salt, whole wheat flour, yeast mixture and 1-1/2 cups all-purpose flour; beat on medium speed for 3 minutes. Stir in enough remaining flour to form a soft dough (dough will be sticky).
Turn onto a floured surface; knead until smooth and elastic, 6-8 minutes. Place in a bowl coated with cooking spray, turning once to coat the top. Cover with plastic wrap and let rise in a warm place until doubled, about 1 hour.
Turn onto a floured surface; divide into 24 balls. Roll each into a 7-in. rope. Holding one end of rope, loosely wrap dough around, forming a coil. Tuck end under; pinch to seal. Place in muffin cups coated with cooking spray. Cover and let rise until doubled, about 30 minutes.
Beat remaining egg; brush over rolls. Bake at 400° for 9-11 minutes or until golden brown. Remove from pans to wire racks to cool.