So you are looking for a more sustainable grilling solution? The CasusGrill has you covered. It is a biodegradable instant grill that can be put to use in about 5 minutes. It heats for up to an hour, so you can cook your food anywhere. The unit uses 60% less coal than other single use grills.
The unit measures 12.2″ x 9.25″ x 2.16″. When you are done, you can dispose it in a bonfire.