Bardeni
One of very few decent spots within a short walk of the Sagrada Família, this "meat bar" doesn't take reservations; instead it offers a walk-in-and-graze tapas menu of items like steak tartare and aged filet mignon in a tiled, industrially chic dining room that doesn't invite lingering but is rarely empty—arrive early for a table. Former Catalan Chef of the Year Dani Lechuga throws in the occasional fine-dining dish to lighten things up.