Fray Bentos here we come....

[Fantasie 19]

..packs flat, and sits on top of a normal gas ring.... genious!

http://www.backpackeroven.com/index.php

 

[Malcb]

i've been looking for one of those for some time, used to be called a biscuit tin oven in the UK. Haven't seen one for nearly 50 years.
Thanks for the link.