It's Taco Tuesday. Dorg's favorite dinner day. But his Mom says it'll have to be Leftover Tuesday instead - all the stores are sold out of taco shells. Nooooo. At the mall, Dorg and the gang discover the source of the taco shortage. Mr. Munch has installed a taco-making robot and filled it with every taco shell in Normill. Dorg is crushed. But the Magicals figure that if people just stop eating tacos, then Munch will stop hoarding the shells. So Patronella casts a spell on the taco-eaters to get rid of their hunger. But the magic goes wrong and makes them even hungrier. The gang shape RD into a dancing pizza and manage to lure the taco-eaters away, but Munch doesn't take kindly to losing his customers. A wild chase ensues with Munch riding on his Robo-taco-tron that shoots fiery hot sauce. In the end, Dorg doesn't quite get what he hoped for, but when Patronella accidentally conjures a banana hot dog, the gang decide to start a new Tuesday tradition.