Patti, I have done the pasta thing numerous times. Using pasta such as found in pasta snack meals that you can buy in the shops work on the principle of add hot water, wait five minutes then eat. For other types of pasta you can always use something like one of the numerous pot cosys to save using extra fuel. After pouring the water to make your tea, pop in the pasta and depending on type, may need to boil for a few minutes before popping in a pot cosy to contiue the cooking process. Once its cooked, don't leave it in the water. Drain the water off before storing and then protect from the air to prevent it drying back out and keep in a coolish place as best you can. My pack works okay. Sometimes, when I have come back to eat it and can just have started to dry out but I usually just place a little spot of cold water back in, mix up and it's okay for me. It's no different from taking pasta as a packed lunch to work for me.
Regardless of how you prepare your pasta, the point of the thread was that a cold pasta meal, prepared earlier is an ideal snack and that there are numerous products out there, such as the tuna sachets, that when mixed in with the pasta and are really tasty! I probably did'nt make that bit very clear but i was thinking more of the eating / meal suggestion than the cooking bit. Typical bloke!!!