Clean and wash the cauliflower and divide it into florets. Cut 3-4 florets into 1 cm thick slices. Peel and chop the onion. Heat 2 tablespoons of oil in a large pot. Sauté onion and cauliflower florets for about 5 minutes. Pour in coconut milk and 1⁄2 l water, bring to the boil, season with salt and pepper. Cover and simmer for about 10 minutes.
Clean, wash and slice the radishes. Cut cress from the bed. Sort spinach, wash, shake dry, add to soup and cook for about 2 minutes. Puree the soup finely and if necessary pass through a sieve. Season with salt, pepper and nutmeg.
Meanwhile, fry the cauliflower slices in 1 tablespoon of hot oil on both sides for about 4 minutes. Serve the soup with cauliflower slices, radishes and coconut chips. Sprinkle with cress and chili flakes.