The Mask: Animated Series (1995)

S2E7 Mask au Gratin

During a city tour with a girl, an unexpected twist occurs when she morphs into a cheese-creating monster. As she unleashes her bizarre powers, everything around them begins to transform into cheese, causing chaos and confusion. The protagonist must navigate this strange turn of events, seeking a way to reverse the enchantment and restore normalcy to the city before it becomes a gooey, cheesy mess.