Drain the spinach, broccoli, and courgette, then add them to a blender along with 1 x 400g (14 oz) tin of coconut milk (reserving 3-4 tbsp for garnish), ¾ lime juice, 2 tablespoons of curry powder, 2 teaspoons of ground cumin, 1 teaspoon of salt, 2 tablespoons of tamari/ soy sauce, 1 tablespoon of maple syrup, and ½ teaspoon of black pepper. Blend until smooth.