The wetter the mixture, the moister the salmon loaf will be after it bakes. Place the mixture in the prepared loaf pan and bake until it is golden brown and cooked all the way through, 35 to 40 ...

Place a quarter of the charred courgettes into the bottom of the loaf and press down lightly. Place a quarter of the remaining watercress on top and press down. Top with a quarter of the salmon ...