(Strictly conjecture, except for Nadhew...)
Liam: Likes most foods, but draws the line at reptiles.
Addle: Anything, as long as it's nourishing and wholesome.
Philyth: Candied rose petals.
Solude: Anything exotic, as roast swan with almonds and passion fruit nectar gets boring after a while.
Tim: Spinach. It's good for you, and full of vitamins and minerals. (Truth is, the stuff makes him gag.)
Claydle: Angel cake, made of real angels, very thinly sliced. When no angels are available, humans or Nadhew make an acceptable substitute.
Loki: Chocolate chip cookie dough. Wicked!
Lugh: Archangels do not eat. It detracts from their mystery and dignity.
Cifer: Whole roast boars and vats of mead.
Ruby: Pancakes and lemonade.
Sapphy: (Too shy to tell.)
Emel: Mutton stew and a jug of ale.
Dragon: Juicy little boys and crisp, crunchy heads of the Imperial Guard!
Muahahahaha! Just kidding.