MREs will do for maximum convenience and portability for the short-term (no more than 30-90 days). The complete MRE packs come with a lot of redundant stuff that takes up space and you have to pay for (knives, forks, condiments, bottle opener, maybe even a food warmer). Might be cheaper to buy boxes of individual entree pouches. Shelf life can be mediocre (about 2-3 years) before nutrition degrades. It would be more suitable for travel than home food storage, unless you're only interested in short term better-than-nothing emergency food for a week or two. But this won't work for a year supply because the nutritional and caloric imbalances in MREs will either leave you fat or malnourished in the end.
The survival food tablets and bars are more a last resort survival option and after a week you would become quite sick of eating it to the point of gagging. Those are better suited for your bug-out bag because they are so portable. Those plus a medical kit, toiletries, multi-tool, flashlight and batteries, identification, change of clothes, and cash make for a basic bug-out bag.
For a year supply, dehydrated foods in #10 cans is the most popular solution. Or I should say the only solution unless you're Mormon. Not portable, but does have good shelf life and variety. http://www.alpinesurvival.com/one-year- … upply.html Shelf life is maximum twenty years under ideal conditions. Cost approximates $2.5 per day. Don't forget water storage or filtration systems if you're serious about this. Also consider the possibility that you'll never end up needing to use any of it, and think of whether the food would still be good enough to consume when you've realized that it no longer needs to be stored for survival purposes.
I'm not really into the head-for-the-hills survivalism but did research this stuff during the pre-Y2K years. What makes sense to me is prudent preparation that covers the bases without demanding emotional investment and mental preoccupation, that does not detract from one's current rhythm of life and balance of attitude, that can be done quickly and efficiently and then put out of mind until the need arises to make use of it. Letting fearful obsession with survival displace other positive life activities to the point of becoming a lifestyle in itself is spiritually retrogressive and invites the very thing feared.
Acquiring fringe knowledge is like digging for diamonds in a mine field.