Wash the bean sprouts and drain well. Clean and wash the peppers and cut into fine strips. Clean and wash the spring onions and cut into rings. Put all ingredients (bean sprouts, paprika strips and spring onion rings) in a bowl and mix well. Mix a salad sauce from sugar (2 tbsp), light rice vinegar (2 tbsp), medium-hot mustard (1 tbsp), mayonnaise (4 tbsp) and sunflower oil (10 tbsp). For serving, divide the salad on portion bowls and drizzle with the sauce.