Question about monologues...

Hi everyone. I recently got an audition where I'm required to prepare and present a one-minute long monologue. No real big deal, I'm familiar with the format for auditioning, understand why and also got enough feedback to work out what might be a good topic or character to present. Thing is I haven't auditioned much in many years, and found the prep process quite a lot more daunting than it should have been. Wondering how other people deal with this format? Do you fall back on old stuff you've written? Perform classics? What to you do? etc.