Any fish is lovely done in a foil parcel, I especially like trout, (when my son in law catches some)
I just pour on a bit of melted butter, sprinkle on a bit of black pepper, lemon juice and fresh or dried parsley.
This is nice for most fish.
My daughter made this fish pie last week, and it was absolutely beautiful, one of Jamie Olivers recipes.
I don`t think it was cheap, but there`s seven in her family, plus she brought me a large portion, which would have done for two, with some veg.
http://www.jamieoliver.com/recipes/fish-recipe s/fish-pie