Preheat the oven to 375 °F
Cut the cauliflower in florets, place on a baking. Add olive, salt and pepper mix well
Cook the cauliflower for 20 to 25 minutes.
In a large bowl, whisk olive oil, lemon juice, mustard, and coriander seeds.
Add cauliflower, rice, bell pepper, chickpeas, and parsley. Stir well and serve.