Cook chicken per specifications and slice into small pieces.
Cook the sushi rice according to the package and let cool slightly.
Cut two slices of canned ham and lightly brown them on a griddle or frying pan.
Lay the nori sheets into a long rectangle.
Add sushi rice on top of the nori sheets and pack together.
Layer cucumber, carrots, red onion, radish, avocado, purple cabbage, pineapple, canned ham, and chicken in thin layers on one half of the rice.
Carefully fold the rice and nori over the top of the ingredients to wrap the contents.
Cut the sushi sandwich in half and turn the insides up.
Drizzle teriyaki sauce and sprinkle sesame seeds over the top of the sandwich.
