Preheat the oven to 190C (375F / gas mark 5).

Drizzle the cod with olive oil, season lightly, and bake for 15 minutes until it flakes easily.

Meanwhile, steam or boil the cauliflower florets for 10-12 minutes until very soft.

Mash or blend the cauliflower with the butter and cream cheese until smooth.

Flake the cod into soft pieces with a fork, checking carefully for bones.

Serve the flaked cod on top of the cauliflower mash.