Julienne the potatoes, soak in water for 5 ~ 10 minutes, and drain in a sieve.
Place the potatoes in a heatproof bowl, and microwave for about 1 ~ 2 minutes (Make sure you cover with plastic wrap or a lid.)
Heat vegetable oil in a pan, and drizzle sesame oil for flavour if you want. Add the beef, and stir-fry.
When the meat changes colour, add the potatoes, and continue stir-frying.
When they are soft and wilted, add the salted konbu seaweed, and mix well. Adjust the flavour with salt and pepper according to your taste.
Serve on a plate, sprinkle the thinly sliced green onion, and it's done.
Story Behind this Recipe
I used to stir-fry the potatoes and the beef. I wanted to rearrange it and when I opened the fridge, I saw the salted konbu seaweed. I added it and it was so delicious. That's how this recipe was made.