Kevin Cooks Stuff in the Office is a short video included in the special features section of the third season DVD.
Kevin conducts a cooking show program for the documentary crew. He creates "Quesadillas à la Kevin" (using Herr's and squeezey cheese in the microwave), as well as "crème brûlée" (using tapioca pudding with sugar on top, baked in the toaster oven).
Kevin also brews beer in his cabinet, which Oscar finds disgusting. Stanley makes an unwanted appearance.