01 - Preheat oven to 400°F. Line a baking sheet with parchment paper and set aside.
02 - In a small bowl, whisk together the white miso paste, soy sauce, mirin, sesame oil, honey, and grated ginger until smooth and well combined.
03 - Brush the salmon fillets generously on all sides with the miso marinade. Let them rest at room temperature for 10 minutes to absorb the flavors.
04 - Place the marinated salmon fillets on the prepared baking sheet. Roast for 12 to 15 minutes, or until the salmon flakes easily with a fork and reaches an internal temperature of 145°F.
05 - While the salmon roasts, cook grains according to package directions if not already prepared. Blanch the edamame, shred the carrots, slice the cucumber, cut the avocado, thinly slice the radishes, and chop the scallions. Arrange all toppings within reach for assembly.
06 - In a small bowl, whisk together the rice vinegar, soy sauce, sesame oil, and honey or maple syrup until the dressing is uniform and the sweetener has dissolved.
07 - Divide the cooked grains evenly among four bowls. Arrange the edamame, shredded carrots, sliced cucumber, avocado, radishes, and scallions in sections around each bowl. Place a hot miso-glazed salmon fillet on top. Drizzle with dressing, and finish with a sprinkle of toasted sesame seeds and nori strips. Serve immediately.