Blanch the spinach in boiling water for a few seconds, then transfer to an ice bath.
Squeeze out excess water from the spinach and cut it into bite-sized pieces.
In a bowl, mix soy sauce, sesame oil, minced garlic, sugar, and salt to make the dressing.
Pour the dressing over the spinach and toss to combine.
Sprinkle sesame seeds on top before serving.
