Preheat the grill to high. Line an oven tray with foil. Halve the zucchini lengthwise, then cut into 1cm-thick slices. Cut the onion into thin wedges. Cut half the lemon* into wedges. Put the chicken flat on a board, put your hand on top and halve horizontally into fillets.
Step 2 — Season chicken and veg
Combine half the kofta seasoning and 1 tbs olive oil in a large bowl and season with salt and pepper. Add the zucchini, onion and chicken and toss to coat.
Step 3 — Grill chicken and veg
Transfer the chicken and vegetables to the lined tray. Grill for 8-9 mins until the vegetables are tender and the chicken is cooked through.
Step 4 — Soak couscous
Meanwhile, put the couscous and remaining kofta seasoning in a large heatproof bowl, add 1 tsp olive oil, pour over 200ml boiling water and cover with a plate. Stand for 5 mins or until the water is absorbed. Season with salt and pepper, then fluff the couscous with a fork.
Step 5 — Serve up
Divide the couscous and grilled chicken and vegetables among plates. Crumble over the feta and serve with the lemon wedges to squeeze over. Enjoy!
Step 6 — Make it spicy
If you like a kick of heat, scatter over a pinch of chilli flakes or thinly sliced fresh chilli just before serving.