Sam (pronounced saam) means 3 in Korean and saek means color. So samsaek namul means vegetables of 3 colors: specifically white, black/brown and green. This sauteed radish (Moo Namul) is the white part.
Add 1/4-1/2 tsp sea salt. Squeeze 1 tsp fresh grated ginger to add the juice only. You can use chopped garlic instead but I like ginger better.
Sauté over med high heat until radishes are cooked and the liquid evaporates. Radish sticks should be semi-transparent when cooked. Finish by adding sesame oil or perilla seed oil (deul kireum) and a sprinkling of sesame seeds.
Store in the refrigerator for up to a week.