Hmmm, some say add things to the food to make it more appealing, some say don't add anything you will create a fussy eater. It's one of those no win things really. I remember reading somewhere that in the wild dogs often "fast" they go 1-2 days without eating and some owners try to recreate this, does the fasting thing seem to fit?
My fussy eater was our Cav and if she didn't want her meal I would just take it away and not offer anything until her next meal - she never suffered because of it - she was actually a little plump

You know how he didn't go for the chicken I read that if you brown the chicken on the skin side (
do not cook it through just add a little colour) it releases the juices in the chicken and makes it appealing to them, they said you only have to do it a few times until they get the idea - you don't want to cook it though just a little heat to get the juices going.