You can find the recipe on the Tesco website. Don't be afraid of using fennel even if like me you don't really like it - it works really well in this dish and once it's roasted with the other ingredients the aniseed flavour is much less pronounced.
I didn't use the cherry tomatoes as I don't like them though I did use the tinned tomatoes in the patatas bravas sauce. I made this on a weekend as it does take quite a while to cook but is pretty easy - you just bung most things into a roasting tin - and it really was delicious.
Here's the fish (salmon, cod and prawns) plus potato, chorizo and onion in a foil-lined roasting tin.
It doesn't look much different after it's cooked, does it?!
Here's the patatas bravas - I cheated slightly and used Aunt Bessie's mini roast potatoes but then followed the recipe for the sauce, which worked really nicely.
The finished dish - really tasty!