Book in advance to enjoy a home-style Portuguese entrée and a bottle of wine for less than $30 at the no-frills A Camponesa de Santa Catarina (Rua Marechal Saldanha 23/25, 213-464-791).
Stick to your budget at 100 Maneiras (Rua do Teixeira 35, 210-990-475) by ordering the prix fixe dinner. The restaurant, which opened this year, features a four-course menu of sautéed seafood paired with improbable vegetables for $52.
Take a break from salted cod (known here as bacalhau) by ordering the fresh fish at Aya. The cuisine spans dishes from the Pacific Ocean, the Sea of Japan, and the Japanese Alps.