Fish Pie

biggest daughter really whinged when she heard I was making this for tea ... and then when she tried it said 'actually this is quite delicious' !!

I buy those fish pie packs when they are on special offer at you-know-where

you will need:
fish pie packs
potatoes
milk
flour
butter
optional: mustard, cheese, frozen peas, frozen prawns

1. preheat oven to 200
2. open the fish pie packs and place the fish in a flat ceramic baking dish
3. make a white sauce - melt some butter in a saucepan, add some flour and stir till it makes a yellowy paste, cook for a couple of minutes, then add some milk and stir stir stir till its smooth, keep cooking and stirring till the sauce thickens (or google delia to get more specific instructions!!!)   I then add some mustard and pepper to make it more tasty
4. boil up some potatoes till soft, drain the water, then mash with some milk and butter and pepper
5. put some frozen peas and prawns into the dish with the fish if you like 
6. pour over the sauce onto the fish
7. put the mash ontop of the fish - spread it out and cover with grated cheese 
8. bake in oven for 30- 40 mins - check fish is cooked through, sauce in bubbling hot and top is crispy