I've got no intention of putting you off going to C&C, I've also enjoyed a few meal here.
But for British / European cuisine you can also go to the Dartmouth Arms, Sylvan Post or All Inn One (Foresters). Over in Honor Oak are Tapastry (Spanish) and Le Querche (Italian), and in Kirkdale is That's Amore (Italian), all are lovely restaurants and worth trying.

There is also a recently opened Polish restaurant on Dartmouth Road - I haven't tried it but it looks promising. It might not be what you were thinking of in terms of European cuisine, but it is European.

Enjoy discovering your favourites!