There was 2 long hours to wait in Madrid T1. There weren't many food options without being able to go through security or change terminals. In the end the only option was Mahoudrid which at least also has a large sitdown area.
It wasn't a particularly Spanish introduction but the burger and potatoes were unexpectedly good. The burger was without asking cooked with a soft medium rare centre and the potatoes were crisp and seasoned. As part of the meal deal they let me change my drink for a bottle of water (with a higher cost) which served me for the next 2 weeks. Gracias.