Pick and finely chop the oregano leaves, then place in a bowl with the turmeric, a pinch each of sea salt and black pepper and 2 tablespoons of oil to make a marinade. Toss the chicken in the marinade and leave aside.
Blanch the greens in a large pan of boiling water until just tender enough to eat but still vibrant in colour, then drain, reserving the water.
In a bowl, just cover the couscous with boiling greens water, season, pop a plate on top and leave for 10 minutes. Pick and finely chop the mint leaves and stir into the fluffy couscous with the juice of half a lemon, then season to perfection.
Toast the hazelnuts in a large dry non-stick frying pan on a medium-high heat, removing and crushing in a pestle and mortar once lightly golden.
Return the frying pan to a high heat and cook the chicken for 4 minutes on each side, or until cooked through, turning halfway and adding the peppers when you flip the chicken. Reheat the greens, if needed.
Meanwhile, you can either make a quick houmous (put three-quarters into the fridge for another day if making a full batch) or simply use yoghurt – both options are delicious.
Serve the chicken with the couscous, peppers, greens and houmous or yoghurt, scattered with the hazelnuts and with a lemon wedge on the side. Nice with a drizzle of hot chilli sauce too.