Cook the spaghetti in plenty of boiling salted water for about 8 minutes. Drain and let cool off
Clean, wash and slice the tomatoes, remove seeds if necessary. Skin the sausage and cut into strips. Clean, wash and cut iceberg lettuce into fine strips
Mix the Asian sauce and vinegar. Fold in the oil. Season to taste with salt, sugar, sambal oelek and soy sauce. Mix with the prepared salad ingredients, leave to stand briefly and season again. Wash the parsley, chop finely and sprinkle on top