Egg foo young is one of those dishes that has been adapted for western tastes, and in fact there are 2 very distinct versions. British Chinese restaurant egg foo young is pretty much just scrambled egg trying to be an omelette. This American carryout version, though, is much more interesting - it's deep-fried, comes with a saucy gravy and is very easy to make.
For deep-frying, enough cooking oil to give 5cm (2 inches) depth in a frying pan or wok.