Lock the Door, It's a Minotaur Scooby-Doo and Scrappy-Doo : Season 1 Episode 15

The gang visit the Greek Island of Helos where they run into the terrifying Minotaur, who is half human and half bull. The Minotaur warns them to leave the island, but those meddling kids smell a big steaming pile of bull poop and want to figure out who's really in that Minotaur costume.