Directly under the Great Hall, the kitchens are down the same staircase that leads to the Hufflepuff Basement. Inside there are four table identical to the ones in the Great Hall above. Food is simply placed on the tables by the house elves that work in the kitchens and it is sent to the tables above. For access to the kitchens you must tickle the pear on the fruit portrait which in turn turns into a knob.
