I haven't thought about the actual meal, but it'd be something very healthy with all the essential vitamins and minerals and a good balance of macronutrients. There's no point in picking your favourite foods if it's going to be all you can eat for the rest of your life - if you eat nothing but one thing, it's going to get boring soon enough anyway no matter how much you love it initially, so why pick something unhealthy that's probably going to see you dead before you reach 50? My favourite food, hands down without question, is pizza, but there's no way I'd pick that as my only meal for the rest of my life because in the end it'd become no more exciting or enjoyable than something a lot healthier.