01 - Rinse the rice under cold water until the water runs clear. Combine with 3 cups of water in a saucepan, bring to a boil, reduce heat to low, cover, and simmer for 15 minutes. Remove from heat and let stand, covered, for 10 minutes.
02 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
03 - Arrange the eggplant cubes on the prepared baking sheet. Drizzle with 1 tablespoon sesame oil and toss to coat. Roast for 15 minutes, turning halfway through.
04 - Meanwhile, in a small bowl, whisk together the miso paste, mirin, soy sauce, maple syrup, rice vinegar, garlic, and ginger.
05 - After 15 minutes, remove the eggplant from the oven and brush generously with the miso glaze. Return to the oven and roast for an additional 8-10 minutes, until caramelized and tender.
06 - Fluff the rice and divide among bowls. Top with miso-glazed eggplant, the white parts of the scallions, and a sprinkle of sesame seeds. Garnish with green scallion tops and cilantro if desired.
07 - Serve immediately.