Cantina Nardi
It's well off the beaten path (even if it is in the center of Livorno's shopping district), but getting here is worth the trouble, as this tiny place has a short menu that changes daily, a superb wine list, and a gregarious staff. The baccalà alla livornese (deep-fried salt cod served with chickpeas) is succulent and crisp, and the ribollita and other soups are very soothing. You could also pop in to sample a glass at the wine bar or to browse the shelves filled with wines from all over Italy.