Pre-theatre in Dalston, post theatre near Barbican

Hi London Hounds,
Looking for dinner before a show at the Arcola. I'd prefer to make our way to the theatre first and then eat somewhere around there. Anything chowish in Dalston? I'm open to anything, but would prefer less expensive. We already have Lebanese and Turkish for other meals that week, so perhaps something different. (Though another night of either wouldn't bring about a complaint.) I'd be particularly happy for a good Indian place.

I'm also looking for a post-theatre dinner around the Barbican. I'd prefer nearby since we'll be hungry, but I'd also be willing to take a quick taxi or Tube ride.