1.Spray the lamb steaks with oil and sprinkle seasoning on both sides. Preheat a pan or BBQ to a medium-low heat and sear the lamb for 4-5 minutes on each side until well coloured, firm and spongy to the touch. Remove from the heat, wrap in foil and rest for 5 minutes before slicing on an angle.
2.For the dressing, combine the olive oil, orange juice and seasoning in a jar and shake.
3.For the dukkah, whizz the nuts and spices together in a food processor.
4.Toss the salad greens with some of the dressing. Top with feta and watermelon slices, then the lamb. Drizzle over the remaining dressing and sprinkle with dukkah.