I mostly cook from scratch at home, and use very few convenience foods, so i don't know the range, but i also find that I am sometimes stuck at a conference center or meeting and need to bring a meal which I can heat up in a microwave or hot water. I need to travel, so frozen meals don't work. Also, just to throw a wrench in (and why I just can't buy a sandwich), I am allergic to gluten.
So, what are decent shelf stable, portable foods i can pack in my suitcase and have on hand if I need to eat lunch and can't get to a restaurant - like an upcoming trip where there is NOTHING but sandwiches around. If you don't know if something is gluten-free, that is fine i can figure that part out.
Tasty Bite, Thai Kitchen noodle bowls - any of those decent?