Use a strainer to rinse and drain shirataki noodles well. Pat dry. In a microwave-safe bowl, microwave for 1 minute. Drain excess liquid. Dry as thoroughly as possible, using paper towels. Cut noodles up a bit, using kitchen shears if you've got 'em.
Add sour cream, grated topping, and cheese wedge, breaking cheese wedge into pieces as you add it. Microwave for 1 minute.
Stir well and then season to taste with salt and pepper.