Cook the noodles according to package instructions and set aside.

Over low heat, sauté the white parts of the scallions until golden, then remove them from the pan.

Place chopped scallion greens and minced garlic in a bowl, then pour in the hot oil.

Add soy sauce, salt, and granulated sugar.

Add the cooked noodles and toss to combine. (Optional: Add tofu if desired.)