Moments at Mandarin Oriental
There is plenty of fine dining in Barcelona, and such restaurants are a key part of eating here. Moments is run by one of the region's longest-standing famous chefs, and is an excellent place to try if you're looking for a fancy meal. There's an a la carte menu if you're not ready to commit to a tasting menu situation, and the space - located in the Mandarin Oriental - is beautiful. Expect high-end, modern takes on Catalan food with influences from all over.