Trekking Mahlzeiten is a subsidiary of Katadyn, who are famous for hiking gear, especially water filtration equipment.
T.M. also make a
powdered wine to go with your canned cheeseburger.
And a powdered chocolate mousse for dessert.
I expect the cheeseburger would taste like rubber, and I cannot believe that it has lettuce on it - the picture on the can doesn't show this and I can't see how it would survive the canning process.
They have, nevertheless, answered a very important question:
Yez. You can haz cheezeburger. Anywhere.