So I have no qualms about writing any genre. I've written three books, all told (and several partial books, but we won't talk about those here, ha ha). One is a fairy tale retelling, one an epic science fiction/history crossover novel and one a contemporary romance.
I won't argue there are certain genres I tend to turn to more often than others when it comes to reading and writing. Depending on my mood, I might need a pick-me-up and turn to a lighthearted Kristan Higgins novel. Or I might feel I need some weighty historical events to ponder, and I'll pick up Naguib Mahfouz. Similarly with writing - I might be in a frivolous mood and write a slapstick comedy story, or world events might be getting me down, and I'll write a serious literary piece.
When I was a kid, there was a time when my goal was to write a book in every genre. That might be harder to do nowadays, with all the subclassifications of YA and MG and Wazoo and whatnot, but I think it might be a fun challenge to try.
What do you think? Do you read only one genre or are open to reading more? What is your favorite genre? And if you like a particular author, would you read their work even if they wrote a book in a genre you tended not to read?