Unfortunately the questioner says he doesn't like the tone of some of the replies, but one has to be brutal and say if food is of such a high importance, both in eating periods and type and quality, it really is not practicable or sensible undergoing the investment required in pilot training, in my opinion. From the look of his health profile from other posts, I really have to say, not brutally, but honestly, that he will not fit well into either a shorthaul or longhaul environment, when meals are frequently missed altogether, extensively delayed, or taken to a very low quality and/or quantity.