I'm surprised no one has mentioned what is MY personal favorite quick bulk meal.
Deli Meat. I usually go to some sort of grocery store and buy a good 3lb of Salami, Peperoni and whatnot, and will snack away on that. A lot of protein, some fat, and if you want to really go all out, stack em up and put it in a bagel with a lot of cheese. Delicious and can be eaten anywhere!