La Mar
Chef Gastón Acurio's reinvention of the traditional cebichería is one of Lima's most popular lunch spots. The décor is minimal, but the menu offers a kaleidoscopic selection of delectable seafood dishes. Start by sharing a degustación de cebiche (various types of fish or seafood marinated in lime juice) or a chalana de causas (various mashed-potato appetizers with seafood-and-mayonnaise fillings). Then try the picante de mariscos (sautéed seafood in a spicy cream sauce) or one of the catches of the day. The servings tend to be large, so you may want to share.
The place doesn't take reservations, so arrive before 1 or you'll wait an hour for a table.