Dice the eggplant and onion.
Heat cooking oil in a pan and sauté the onion.
When the onion turns translucent, add the eggplant and stir-fry together.
Add soy sauce, sugar, and minced garlic, then continue to stir-fry.
Pour in 50ml of water and simmer until slightly thickened.
Spoon the stir-fried eggplant over the rice.
Finish by sprinkling chopped green onion and sesame oil on top.