Canned or jarred dried beef, just make sure to rinse it first to get rid of some of the salt, you can make creamed chipped beef over toast, or boil-in-bag rice (in the field, we used to drain it by swinging over my head, clamped with a giant hemostat).
You can get pancake mix in little bottles, just add water, shake and pour. The precooked bacon seems to be pretty stable, most stores do not refrigerate it. As others have said, syrup is pretty stable, the sugar content is too high to grow bacteria, just buy in small containers. I used to buy several packets of mayo, cream cheese and jelly from restaurants, if you are nice to the waitress, you may get them. free
The small containers of margarine are pretty stable at room temperature as well. I wish that we could still get the canned bacon that K-Mart used to carry, although I did hear that they are starting to import it again.
Many salami and other sausages are stable at room temp, as well as many cheeses, especially the hard ones. If you are willing to spend the money, you can even get canned cheeseburgers, dehydrated wine, albeit alcohol free. Corned beef hash is great with eggs.
The canned beef patties are pretty good, and you can buy small packages of dehydrated mashed potatoes.
These are just off the top of my head, 20 years of being a field rat stuffed alot into my head.