Dice the eggplant and onion.
Slice the green onion thinly.
Heat cooking oil in a pan and stir-fry the green onion to make scallion oil.
Add the onion and eggplant and stir-fry.
Add gochujang (Korean chili paste), chili powder, soy sauce, sugar, and minced garlic, then stir-fry again.
Add a little water and simmer until ingredients are cooked through.
Place the stir-fried eggplant over rice to serve.