This place is amazing - and definitely not well known among foreign tourists, as we were the only…read morenon-Spanish people in the entire restaurant.
Their lunch menu is 14€, which includes a starter, a main, dessert as well as water. The whole menu is in Catalan, but this was no problem at all, because the owner's daughter's English was amazing - she translated the whole menu for us. I've never seen a fixed price menu with so many options before, we could choose from about 20 different starters and around 10 mains. The quality of the food was astounding considering the price, everything was very flavorful and well seasoned.
I would definitely recommend making a reservation, as the place was completely booked for lunch when we came here on a Thursday.