Wash and slice the green onion and potato
Blanch the potato briefly in salted water
Heat olive oil in a pan and sauté the green onion to bring out its aroma
Add the potato and stir-fry together
Put the sautéed ingredients, milk, and salt in a blender and blend until smooth to make the sauce
Boil the pasta noodles and mix them with the sauce
Plate and finish with pepper