For the salmon, sprinkle evenly with 1/2 teaspoons salt and pepper. Place salmon, skin sides down on a baking sheet coated with cooking spray. Bake at 250°F for 30 minutes until fish flakes easily with fork or until desired doneness.
For the rice, rise with cold water and drain. Combine rice with coconut milk, 1 1/2 cups cold water, and 1/4 teaspoons salt in a medium saucepan. Bring to a boil over high heat, stir once. Cover, reduce heat and simmer 20 minutes until all liquid is absorbed. Let stand 10 minutes and stir in green onions.
For the bok choy, heat oil in a large non-stick skillet over medium-high heat. Add bok choy and ginger, sauté for 1 minute. Add sake and 1/4 teaspoons salt; cover and cook 2 minutes or until bok choy wilts. Cover and keep warm.
For the sauce, combine juice and remaining ingredients, stirring well with a whisk.