pre heat oven at 180'c

finely slice the leek an simmer in half cup of milk stop once leek is soffend

dice an slice onion and gently fry add half to leek an milk

dice the fish an lair at the bottom of a narrow baking dish with the peas an sweet corn an rest of onion

add double cream, rest of milk an half the cheese mix well

dice potatoes and boil untill soft, drain and mash

to the mash add a drop of butter an the leek onion and mix well then lair on top of the filling in baking dish

use whats left of the cheese on top of the potatoe, beat an egg an brush gently over the top (this is optional to help crisp the top) then place in oven for about 20/30 mins