Cook the sushi rice according to the instructions on the package. Then stir in the seasoned rice vinegar.
Put the edameme in a small pot, cover with water, bring to a boil and cook for 4 minutes. Drain the beans.
Heat a medium non-stick frying pan over medium-high heat. Add the cooking oil and the mackerel to the pan. Cook for a minute or two per side or until the mackerel is browned and warm.
Divide the cooked rice among two plates. Top the rice with the edamame, carrots, mackerel, teriyaki sauce, and scallions. Put a few dots of wasabi around the plate.
For an authentic sushi taste serve the bowl with a side of smoked nori snacks.