Preheat the oven to 220C, fan-forced. Rinse the rice until the water runs clear. Put in a small saucepan with 250ml (1 cup) water, cover and bring to a simmer over medium heat. Reduce the heat to low and cook for 12 mins or until tender and the water is absorbed. Turn off the heat and stand, covered, for at least 5 mins.
Step 2 — Prep ingredients
Meanwhile, peel and finely grate the ginger. Coarsely chop the coriander leaves and finely chop the stems. Halve the pak choy lengthwise.
Step 3 — Make marinade
Put the ginger, coriander stems, miso, fish sauce, 1 tsp sugar, 2 tsp oil, 2 tsp white vinegar and 2 tsp boiling water in a bowl and whisk to combine. Season with pepper.
Step 4 — Bake pak choy
Line an oven tray with baking paper. Put the pak choy on the lined tray and drizzle with half the marinade, then bake for 10 mins.
Step 5 — Bake salmon and edamame
Add the salmon and edamame to the tray with the pak choy and drizzle with the remaining marinade. Bake for a further 6-8 mins until the vegetables and salmon are just cooked or cooked to your liking.
Step 6 — Get ready to serve
Fluff the rice with a fork. Serve the salmon, vegetables and rice at the table and scatter with the remaining coriander.