Smoked warehou & mushroom pie

If there’s anyone I’d trust implicitly with a fish pie recipe it’s Nigel Slater. Mushrooms and smoked fish aren’t a common combination but they work so well here. Rather than faffing about making a béchamel, the sauce quickly comes together using crème fraîche and grainy mustard. Genius, Nigel. Smoked warehouse & mushroom pie Based on a recipe by Nigel…