Haven't tried anything as each time I've been in, it's closed despite the door being open! They close at 3pm each day and apparently have no plans to open in the evenings which is a shame as it would be lovely and not much competition nearby.
On the evening of posting this, I went past El Vergel and saw it packed with evening diners! Not sure if this was just a Christmas function but may be worth checking as there is another thread running about variable opening hours and it appears that it might be a bit experimental at the moment.
It always amazes me that some businesses don't update their websites regularly, and some don't put opening times on there at all. (Although at least El Vergel has a website... some businesses don't even have that!)