Shake the Vinaigrette : In the small screw-top jar, combine the low-sodium soy sauce, rice vinegar, mirin, toasted sesame oil, and freshly grated ginger. Seal the lid tightly and shake vigorously for 15-20 seconds until the mixture is well emulsified.
Prepare the Crisp Vegetables : Using the vegetable peeler or grater, shred the carrots. With the chef's knife, slice the radishes into thin, crisp rounds. Set aside.
Ready the Creamy & Savory Elements : Just before you plan to serve, carefully cube the avocado. To prevent browning, you can toss it with a few drops of the vinaigrette. Crumble the toasted nori sheets with your hands into bite-sized pieces.
Build the Foundation : Divide the cooled short-grain brown rice evenly, creating a base layer at the bottom of your three serving bowls.
Artfully Arrange Toppings : Arrange the shredded carrots, sliced radishes, thawed edamame, and cubed avocado in distinct sections on top of the rice base.
Garnish and Serve : Drizzle approximately 2 tablespoons of the mirin-ginger vinaigrette over each bowl. Finish by scattering the crumbled nori and a generous sprinkle of toasted sesame seeds over the top. Serve immediately.