Make the Dressing: Combine the soy sauce, ginger, rice vinegar, and a small pinch of salt in a bowl. Whisk these together thoroughly. Gradually whisk in the peanut oil and sesame oil until smooth and well-mixed. Set the dressing aside for later.
Steam the Kale: Fill a large pot with about an inch of water and insert a steamer basket. Add the kale to the basket, cover the pot, and steam over medium heat until the leaves are tender, approximately 7 minutes.
Cook the Eggs: Bring a medium saucepan of water to a boil. Gently lower the eggs into the boiling water with a slotted spoon, and cook them for about 6 minutes. Prepare a bowl of ice water while the eggs cook. Once done, transfer the eggs to the ice water to cool immediately, then carefully peel them once cooled.
Assemble the Bowls: Divide the cooked grains evenly among four serving bowls. Arrange the steamed kale on top of the grains in small mounds. Add slices of avocado next to the kale, and then cut the peeled eggs in half and place two halves in each bowl. Sprinkle each bowl with kimchi, sliced scallions, sesame seeds, and, if desired, crumbled seaweed.
Finish and Serve: Drizzle the prepared dressing over each bowl just before serving. Enjoy immediately for a flavorful and balanced meal.