Bring a large pot of salted water to a boil. Cook the noodles according to package directions until al dente. Drain and rinse with cold water to stop cooking.

In a medium bowl, whisk together peanut butter, soy sauce, rice vinegar, honey, sesame oil, and minced garlic until smooth.

Add warm water gradually to the peanut sauce, whisking constantly, until you reach a creamy, pourable consistency.

Place the cooked noodles in a large bowl and pour the peanut sauce over them. Toss well to ensure all noodles are evenly coated.

Transfer the peanut noodles to serving plates and garnish with sliced green onions. Serve immediately or chill for a cold noodle dish.