I did think of that but couldn't remember the name. I went there with my Mum years ago and it was good.
If you need to be in the area but want to avoid tourist hell there is a (better) tapas in charlton, on charlton church lane, called chu and cho. Might be worth googling to check its still open, but the food is great, really relaxed and family run. Its a stop from Greenwich on the train. I used to live opposite it!
Or Blackheath- horribly over rated but shouldn't be too busy. Chapter 1 is nice there,
I'll email if i think of anywhere else,.....