Bring a large pot of water to a boil over high heat. Add the noodles and cook following package instructions. Drain into a colander set in the sink, then rinse with cold running water until cool to the touch. Drain well.

Transfer noodles into a medium bowl and toss them with 1 tablespoon sesame oil so that they don?t stick to each other. Cover with plastic wrap and place them in the fridge to keep cool while you prepare the sauce.

In a small bowl, add the remaining 1 tablespoon sesame oil, peanut butter, soy sauce, honey, rice vinegar, and garlic. Whisk with a fork until combined and smooth.

Scrape the peanut sesame sauce on the cold noodles and toss to combine. Garnish with sesame seeds and green onions, if desired.