Dice fresh raw salmon and tuna.
Finely chop vegetables such as avocado, cucumber, and red onion.
Place rice in a bowl.
Top the rice with the diced fish and vegetables.
Mix soy sauce, sesame oil, lemon juice, and sugar to make the sauce.
Drizzle the sauce evenly over the ingredients.
Finish by adding toppings like sesame seeds and crushed seaweed.