Try the Museo del Vino on c/ Cruz 14 for lunch - especially their roast suckling pig (cochinillo). Just ate there last week. FANTASTIC. The skin was so crunchy when I cut into it it was like breaking glass! I had the sopa de mariscos for a starter (awesome) and my dad had the langostinos (chilled with a creamy rose sauce) delicious and only 19 Euros each. Oh, and that great melon for dessert that I can't find in the states (looks like a green american football)