Your use of MREs may be misleading, but I can't tell. My wife and I have a month's worth of food stored in our van, but it's all canned or boxed stuff we bought at the store. We also have some HeaterMeals we bought from that company; they're a sort of MRE - self-heating meals in a plastic pack. Military MREs have too many calories, too much salt, too much fat for my 60+ year old body. HeaterMeals suit my nutritional needs better.

If you're looking for storable meals that need little or no preparation, check our page at http://www.cieux.com/bm/quickMeals.html and see if anything suits you.

I wouldn't rely on any one thing for food for a month - not all MREs, not all canned goods, not all dehydrated stuff. Mix it up so you don't get bored to death.