i know this is more "camping" than "survival" but i take Wakefield brand egg mix. it has egg with dry milk,oil and salt added in the pack. and it's just fine on long canoe trips.i have it ever other day for breakfast,pancakes on the others.it seems to be made for people without refrigeration and just not the outdoor gang.
the trick is not to make it just as scrambled egg but add too it.
i found just egg leaves you hungry after awhile so i add Minute Rice as a carbo filler along with sun dried tomato and freeze dried onion for taste.a pack of bacon chips adds the "grease factor".half a pack a person is more than enough.i would think that a box of this put away would work for those times when you are without power for a long time or bailed out someplace.