Cuban in Des Moines?
Not that I know of unless it's basically brand new. There was one a couple years ago in the ingersoll area but from what I understand it wasn't very good.
The closest thing I supposed would be Mi Patria which is Ecuadorian. I know that's not what you asked for but it's a nice change of pace from all the cookie cutter latin restaurants we have in town. It's certainly the closest thing to Cuban food there is here.