In a large salad bowl, combine the cucumber and red onion. Set aside.
In a small mixing bowl, combine the ginger, rice vinegar and soy sauce. Then, whisk in the sesame oil until combined.
Pour the dressing onto the cucumber and onion mixture and toss until the cucumbers are fully coated. Add some sesame seeds to taste and toss again.
Top with scallions or cilantro right before serving. The salad can last for up to 2 days if its covered in the fridge, just hold on the fresh herbs until right before you serve. I prefer to serve this right away or within a few hours so the cucumbers soak up as much flavor as possible! Enjoy.
