I intentionally kept my version simple, but there are many traditional toppings that you can add. Here are few options. Kimchi, cucumbers, shredded carrots, hot chili peppers, red pepper flakes, and radishes. Sometimes you can also find a fried egg served on top. You can also drizzle a creamy sauce on top, such as the sauce that I use in my Korean Bulgogi Sauce Beef Tacos.