if you can stockpile water (i have 575 gallons) mre can be escaped if you buy a bunch of beans and rice (they dont require heat to cook)
you can add water and a hand full of beans and rice into a ziplock and carry in you pants pocket till it becomes soft and edible (i do this camping)
you can add water and a hand full of beans and rice into a ziplock and carry in you pants pocket till it becomes soft and edible (i do this camping)