Heat olive oil in a large skillet over medium-high heat.
Add sliced eggplant and sauté for 1 minute until lightly golden.
Add Serrano pepper, Fresno pepper, and green onions to the skillet.
Cook for 4-5 minutes, stirring frequently, until peppers are tender and eggplant is cooked through.
Add minced garlic, soy sauce, sugar, and Korean red pepper flakes.
Cook for 2-3 minutes more, stirring constantly, until garlic is fragrant and sauce coats the vegetables.
Serve immediately over rice or noodles.