Put the salmon chunks in a bowl and coat with the cumin and paprika.
Thread the salmon onto 4 skewers, we use wooden ones that have been soaked in water to stop them burning in the oven, but you can use metal ones if you want. Squeeze the juice from a couple of lemon wedges over the salmon.
Place the completed skewers on a baking tray and cook for 10 minutes at 190-200°C, turning once during cooking.
While the skewers are cooking, make up the couscous in a large bowl. One 125g pack will take 200ml of boiling water. Stir, cover with cling film and leave for 3 minutes.
When the couscous is ready, stir in the tomatoes, cucumber, radishes, spring onion, peppers and half of the chopped parsley.
Set this aside, then in a blender add the yoghurt, remaining herbs and a squeeze of fresh lemon juice.
Blitz for a minute or two until the herbs are really fine and the sauce is a nice green colour.
Divide the couscous between 2 plates, then serve two salmon skewers on each bed of couscous.
Finally drizzle the salmon with a little of the herby yoghurt sauce, garnish with a lemon wedge and enjoy!