Boil the chicken breast, let it cool, and shred it into bite-sized pieces.
Cut cucumber, avocado, and cherry tomatoes into bite-sized pieces.
Thinly slice the onion and soak it in cold water to remove its sharp taste.
In a bowl, place shredded chicken breast, brown rice, cucumber, avocado, cherry tomatoes, and onion.
Add basil pesto and chicken breast sauce (or olive oil, salt, and pepper), and drizzle evenly over the bowl.
Finish with sesame seeds and basil leaves.