In a dutch oven or similar type of thick pot with a lid, add the water, soy sauce, and frozen spinach. Put the lid on and simmer the mixture over low heat for a couple minutes until the spinach has thawed completely. Stir to break apart the spinach.

Season fish with a pinch of salt.

Add ginger and green onion whites to the pot, then add the mushrooms, then top with the fish.

Cover the pot and steam the fish 6-8 minutes until fully cooked. Top with sesame oil and green onion greens and serve.

Rinse the starch off the rice in a strainer under cold water for 30 seconds.

Bring the water to a boil over high heat in a large pot that has a tight fitting lid.

Add the rice, stir it just once, and boil, covered, for 30 minutes.

Pour the rice into a strainer over the sink and drain for 10 seconds.

Return the rice to the same pot, off the heat.

Cover immediately and set aside for 10 minutes (this is the steaming part).

Uncover, fluff with a fork, and season with salt and pepper.