Cut tuna and chicken breast into bite-sized pieces.
Dice avocado, cucumber, and onion.
Season chicken breast with salt and pepper, boil or grill, then let cool.
Place tuna, chicken breast, and vegetables on top of rice.
Mix soy sauce, sesame oil, lemon juice, and a bit of wasabi to make the sauce.
Pour the sauce over the finished poke, then sprinkle seaweed and sesame seeds to finish.