Roasted cauliflower and quinoa salad

Name: Roasted cauliflower and quinoa salad
Ingredients: 1 cup quinoa, one colour or tri-coloured; 1 tablespoon olive oil; 2 cups water; 1 teaspoon coarse salt; 1 small cauliflower; A few small carrots, optional; 3 tablespoon olive oil; 2 teaspoons coriander seeds; Salt and pepper; 1/2 cup olive oil; Juice from 1 lemon; Salt and pepper; Optional: 2 tablespoon preserved lemon, chopped; 1/2 cup almonds or another nut (hazelnuts, walnuts); Mixed salad greens; Micro greens; Edible flowers; Julienned zest from 1 lemon (thin strips)