I've helped compile this list on an ozzie site:
Immediately post op you wont be able to have much for a few hours, and you must sip slowly!!! perhaps 50mls at a time for a while. (everyones experience is different but this is pretty much what you can have)
anything you have must be thin enough to fit up a straw, and have NO LUMPS. if you need to Water things down try doing it with milk which helps with Protein .
liquid Vitamins are important (Iron is essential)
immediately post op -
ice chips or water
next day- (after baruim swallow if that is your surgeons thing)
clear broth
apple juice
peppermint tea (good for the wind)
jelly?
day 2 you should be able to start milk drinks -
sustagen, up n go, tea or coffee, milo, etc
Soup but still thin
drinking yoghurt
vegie juice
prune or pear juice if you are having issues moving your bowels.
Low fat frozen yoghurt in little 100gram tubs
ww custard with extra milk to be thin enough(yummm)
ww mousse
smoothies
snack pack
ice cream
Put anything you're not sure of through a sieve.
by day 4 or 5 you possibly could drink 250ml in about half an hour to an hour.
by then end of your 2 or 3 weeks of liquid you can start thickening up your things in preparation for mushy stage.