Tapas on a Sunday for lunch in Barcelona

[lollypop]

Hi CH friends,

I'll be in Barcelona for one day only in July. Sadly, it will be a Sunday and my favorite place - Cal Pep - will be closed.

Can someone recommend a great place for us to grab lunch? I'll be with a large group of my family. We can kind of go anywhere around town. They want to see some Gaudi, Picasso Museum, Miro Museum, Rambla, etc.

thanks