normally I just go with a milk + whey and maybe a banana... but this sounds cool!
Yam Shake
If you've never blended a yam before you're in for a treat! It's recommended to use vanilla protein; all though we never criticize anyone's blender bombs, so there is no wrong flavor! This bomb is a gigantic carb blast. Jesse recommends slamming this one immediately after tough workouts for restoration of your glycogen stores.
1 yam (size of yam depends on desired bodyweight)
3-6 scoops of vanilla whey protein
1 cup of ice
16oz of water or milk
Microwave yam for 5-8 minutes or untill knife cuts easily through entire yam.
Add water or milk to blender and turn on high then add yam.
Add whey protein and ice to yam mixture
source
http://www.marunde-muscle.com/blender.html#yamshake