I'm a whole-foods vegan for health reasons. I would not eat any product containing meat because of the remaining saturated fats, inferior fat composition, animal protein, and hormones/chemistry. IMHO it's still meat.

(Personally I subsist on instant rice, instant mashed potatoes, and home-dried veggies and lentils. If resupplying at a grocery, I will buy lentils and carry the extra fuel to cook them by the boil-and-soak-and-repeat method. IMO there's no reason to worry about protein on a short trip, and a very-low-fat vegan diet helps with fat loss and clears those arteries, especially combined with exercise.)

But, if ease of preparation is your guiding criterion, keep in mind that eating a bit of meat now and then won't be as bad for you as eating dairy, which has no redeeming nutritional qualities whatsoever (the calcium it contains is excreted because of the increased animal protein). As a disclaimer, I want to add that I am not a dietician, I just play one on message boards ;-)

Regards,
Camel Man