I really recommend heading 20 minutes away from the city to La Puebla del Río to feast on their speciality arroz con pato (rice with duck). There are many restaurants that serve it, but the locals love the riverside, family-run El Rezón. The dish costs €8 per head and comes served in a cazuela (casserole dish) with your very own ladle. If you are rather peckish try the camarones con pimiento asado y huevo frito (tiny shrimps with roasted peppers and fried eggs) or mejillones rellenos (filled mussels) for starters.
Plaza Blas Infante, s/n
La Puebla del Rio
C.P. 41130
www.elrezon.com/pages/ES/inicio.htm
+34 955 771 806
Google map: bit.ly/hDDWr3