Boil the pasta noodles and rinse with cold water.
Slice cucumber, cherry tomatoes, and onion thinly.
Shred the cooked chicken breast into bite-sized pieces.
In a bowl, combine cooked pasta, vegetables, and chicken breast.
Add sesame oil, salt, pepper, soy sauce, and vinegar, and mix well.
Place on a plate and finish by sprinkling sesame seeds on top.