If this has been posted before forgive me. I can't imagine it not being here somewhere but I can't find it by searching so here goes:

What are your opinions on the best food given the following criteria:

• Must be easily purchased in the local market (insert favorite supermarket/grocery store/big box store here)
• Must provide fairly complete nutrition such that it could provide much of a persons needed nutrition if it needed to be consumed daily for an extended period
• Must store well with a good shelf life
• Requires a minimum of preparation to eat (eaten as is or just boiled for example).

The best I can come up with is canned soup. With a variety you must be able to get your basic nutritional needs covered.

Any ideas you long term preparedness pros?