Chorizo, Potato & Haddock One Pot

Having said yesterday that I don't eat fish often enough, it turns out they're like buses: you don't have one for ages, then you have a two in row to take advantage of a supermarket deal. Searching for inspiration, I come across Chorizo, Potato & Haddock One-Pot. I make a couple of substitutions, old potatoes (that need using up) in for new potatoes and white wine for sherry. Also, no bread to soak up the juices, so couscous steps in; I add a squeeze of lemon to this for a classic flavour combination.
I thought the starchy potatoes may break up on cooking, but they actually stay intact mirroring the smaller rounds of spicy chorizo in shape, but contrast in taste. This is good though it would probably be better with the sherry recommended. I'll have to expand my liqueur cabinet.

Chorizo, potato & haddock one-pot