|This needs a stretch.|
While Shaggy Rogers made himself a large sandwich, Scooby realized he was also hungry. He got a spell-book out of the cupboard, marked by Velma Dinkley as never to be opened, and recited a spell. Shaggy's sandwich morphed into a monster, and Shaggy ran from it in terror. Scooby recited some more magic words and the monster turned back into a sandwich. Chuckling to himself that it "works every time," Scooby ate the sandwich.