Cook the ramen noodles in boiling water until al dente (as per the packet instructions), drain, rinse in cold water, drain again and set aside.
Mix the mustard with all the other ingredients up to and including the ginger, mix half of the dressing with the noodles, serve in bowls.
Top the noodles with the radish and all the other ingredients up to and including the tofu and micro greens, drizzle with the remainder of the dressing. Garnish the bowls with the nori and sesame seeds.