I just discovered this thread and the associated podcast, and it sounds like such a sensible idea I'm going to try it. (Probably not at the 5 new items a week level -- don't wanna stress out the spouse, who is already too stressed from work -- but she will probably enjoy 2 or 3 new foods a week.)
This one's not a new item for us, but it's one of our favorite storage foods that we actually enjoy eating:
Vermont Country Store Canned ScrappleWhat is it? - Basically a paste of very finely ground pork sausage and corn meal mush. That's a rather unappetizing description of something that's pretty tasty. You can slice it into patties, fry them up, and serve them drowned in warm maple syrup (our preference) or with ketchup

. Or you can just warm it up and eat it with a spoon. Or you could probably eat it cold if you had to. See the above link for ingredients and nutritional info.
Source -
Vermont Country Store catalogPrice - $9.95 for 1 can, $8.33 ea for 3 or more cans
(plus shipping, which would be $3.95/1 can or $5.95/3 cans in the US, if that's all you order)
Container Size - 28 oz
Servings per container - 14 according to the label (if you can believe that 2 oz constitutes a serving!). 4 servings in our experience, if you're going to make a full meal of it. The following calorie and price numbers are based on four 7-oz servings per can.
Calories per serving - 315
Price per serving - $2.58 (based on cost of 3 cans plus shipping)
Chief Advantages - Storage life 3 years according to website (but the cans don't have a manufacture date). Plenty of protein (about 17g per 7oz serving). Easy to prepare. Yummy.
Disadvantages - Expensive. High in fat, cholesterol, and sodium. Can't buy locally (unless you're in VT). Cans often arrive dented.
Uses - Breakfast, lunch, or dinner, as a one-dish meal or in smaller quantities as a side-dish.
My opinion - I wish it were cheaper. I may try ordering a whole case next time, to reduce the dented-can problem. But my wife and I both like the taste, the shelf life is long, and for us it's a good treat to include with our storage food.