The LDS Preparedness Manual is here:
http://www.abysmal.com/LDS/Preparedness/Preparedness.pdf
You can skip down to about page 20 and look for storage tips for all sorts of food.

Check here for storage of vegetarian food:
http://www.vegparadise.com/survival.html
(Just ignore that ad for mouthwatering Nut Gourmet, nut recipes for all occasions.)

I'm in a similar situation concerning storage at home - I live in the San Francisco Bay Area with no outside storage, and my worst case scenario is my house is flattened by an earthquake, with nothing in it being reachable. Among the suggestions is off-site storage in self-storage lockers, keeping everything in a car parked on the street (out of site, of course), and the like. I'd also suggest having friends within walking distance who can hold food for your, since you can't store enough on your own property.

It's a tough situation, and I don't know any really good answers. It's the same for medicine, by the way. My wife and I are on daily doses of various stuff, and if we have a big earthquake, I don't think pharmacies will be open, and I have some expectation they'll be looted.