The Princess and the (Greedy) Pea

There was a green pea who swallowed a sprout. Without a doubt, a Brussels sprout. What's that about? This little pea is SO hungry! So hungry that he has swallowed a sprout, slurped down some soup, munched all the bread, wolfed down the pie, gobbled the cake, noshed all the pickle, guzzled the cheese (that made him sneeze), drank all the tea, and then, chomped up the table! And after ALL that, he needs to have a rest. But just WHOSE food was he eating? And WHOSE bed is he resting in?