In a medium saucepan, set over medium heat, add the water and butter. Allow to cook until the butter has melted and whisk vigorously until the two have emulsified. Add the cheese and pepper and mix. Add the butternut squash “noodles” and cook sprinkle with a pinch of salt. Cover and allow to cook for about 5 minutes. Toss the noodle in the sauce. Transfer to plates. Top with additional cheese, and a bit of black pepper.