Looking for a spud substitute.

That seemingly simple question brought forth ooodles of interesting answers.  I see cassava was mentioned,  nothing like cassave boiled/steamed in a large bamboo section and eaten with compo 'butter' and jam.

Spent some time with the Temear tribe of North Kelantan (out in the oolo) and found this foodstuff very tasty.

Cheers,   Tony.