Toast the Sesame Seeds: Preheat oven to gas mark/350oF/180°C/160oC fan. Line a baking tray with parchment paper then spread the sesame seeds in a thin even layer on the baking tray.
Bake for 5–10 minute until golden. Watch closely as once they start browning, they toast quickly. If your sesame seeds are already toasted then skip this process.
Make the Dressing: Add the grated ginger, chopped garlic and chopped chillies to a small bowl. Add in the soy sauce, rice vinegar, lime juice, oil and sugar then mix well. Sprinkle in the sesame seeds and set aside.
Prepare the Noodles: Soak or cook the rice noodles according to package instructions. Rinse under cold water and drain well.
Assemble the Salad: In a large bowl, toss together the rice noodles, red cabbage, carrots, red bell pepper, cucumbers, spring onions and coriander. Pour the dressing over the salad and toss again to coat evenly. If making ahead of time, keep dressing separate until ready to serve to maintain freshness. Serve and enjoy.