My wife and I spent a week in Cadiz and had breakfast here on three occasions. It was excellent. Menus are in Spanish and the staff don't speak English so there was a lot of google translate and gesticulating going on. Breakfasts were simple filled tostado or croissant along with fresh juices and fruit. The coffee was fantastic. An ample breakfast with a couple of coffees came to less than 5 euro per head. The staff were lovely too.