Southend Blogger Jack Monroe writes:
…on finding a packet of trout in my local supermarket for 70 pence this evening, it was too good not to share.
You can substitute the trout in this recipe for white fish fillets: Sainsburys do a frozen bag of white fish for ?1.75, for 520g, which would make the fish in this recipe 81p for a 240g portion, so only 2-3p more expensive per head than my bargain trout.
See the recipe here.