u/Alternative-Camp4535

Could you help me find a children's book about a monster restaurant? It featured cooks and a cauldron. The cover was illustrated with a cauldron, eyes, and tacos, and it was purple. I don't remember the title; I had it when I was little and I haven't been able to find it. I imagine it's from the 90s or 2000s. I remember that one of the illustrations showed classic monsters.