I just want to mention something that others might not be aware of. If you subscribe to the El Comercio newspaper, download their "club el comercio" discount app. Subscribers get discounts (sometimes up to 50%) at a whole range of restaurants, and unlike the discounts you get through your bank or credit card (which are usually max out at 100 soles or so) the El Comercio discounts don't have a limit. Some of the restaurants involved are Mr. Sushi, la anticucheia, the olive garden, la basilica, charlotte, la traviatta, el obon beef, tony roma's.... in short, a ton. Not as highbrow as the Restaurant Week restaurants, but not too bad either.