While in Baghdad I got the rare privilege to consume a "Cheeseburger" MRE. Believe it or not, they actually make them, and they are downright awful. That was the worst MRE I ever had.
IMHO, cheeseburgers are a "fresh food" item. Trying to make one with a shelf life would be like trying to make a hot dog in a bun using a tortilla and vienna sausages. It just doesn't work.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)