Boil the spaghetti noodles in salted boiling water.
Slice the garlic thinly.
Add perilla oil to a pan and sauté the garlic over medium-low heat.
Add the cooked noodles to the pan and season with salt and pepper.
Finely chop green onions and mix them in.
Serve in a bowl and drizzle a little more perilla oil on top.