Cut the salmon and avocado into bite-sized pieces.
Thinly slice the onion and soak it in cold water to remove the sharp taste.
Place rice in a bowl.
Top the rice with salmon, avocado, onion, cucumber, and cherry tomatoes.
Mix soy sauce, sesame oil, lemon juice, and minced garlic to make the sauce.
Drizzle the sauce evenly over the ingredients.
Garnish with seaweed, sesame seeds, and micro herbs, if desired.