1.YOGHURT DRESSING: In a jug, whisk together ingredients with 1 tablespoon warm water. If too thick, add more water. Season.
2.CAULIFLOWER AND CHICKPEA SALAD: In a deep frying pan, heat oil on moderately high heat. Add cauliflower; cover. Cook, stirring occasionally, for 5 minutes. Remove lid. Cook, stirring occasionally, for 2 minutes or until golden and tender.
3.Add zest, parsley, currants, chickpeas and walnuts. Cook and stir for 1 minute or until heated. Season. Cool slightly. Add rocket; toss. Drizzle with yoghurt dressing. Serve warm.