It's tricky with food that is already made, though, at least here, the options for vegan "fast food" in supermarkets are getting bigger and bigger. You can get everything from vegan pizza to vegan
All I can think of is what I do when I am alone at home and too lazy to cook a proper meal just for myself: I just eat bread or bread rolls with stuff on it. It's fast to make and there are a couple of vegan options that you can put on the bread, like margarine, marmalade, guacamole, fried tofu and (at least here) also a ton of vegan cheese and meat substitutes and also a ton of vegan spreads.
I don't know how great the selection of things like these is where you live, but surely there mist be at least some?
There are also some cup noodles that are vegan, probably the closest substitute to your pasta pots? Though only very few are actually vegan (many often contain at least dried egg, if not milk) and I am not sure they are available where you live, but I did find some lists:
http://www.didyouknow.it/food-drink/5-v ... en-brands/
Or, if you feel very motivated, you could just pre-cook vegan pasta and freeze it in small portions.