Operating out of the Sake no Hana kitchen in St James's, and set to launch this Thursday (4 June), Casa Calavera London is described as a 'first-of-its-kind virtual culinary pop up'.
It marks the first addition to Hakkasan's UK portfolio since the 2012 opening of HKK in Hackney, which subsequently closed in 2017.
Available to order via Deliveroo and UberEats, Casa Calavera London features a menu that combines 'authentic Mexican cooking techniques, recipes, and ingredients with contemporary, innovative and sophisticated twists'.
Starter dishes include Casa nachos with yellow and blue corn tostochips, cactus chips, guajillo pepper, chipotle, and a choice of toppings; and ahi tuna tostada with pickled cucumber and guacamole, served on a blue corn tortilla.
Mains, meanwhile, will feature chipotle beef brisket tacos, served with fresh jalapeno and feta; achiote chicken quesadilla with roasted onion and poblano pepper; and grilled cactus salad with roasted golden beetroot and pickled red onion.
While Hakkasan did initially close all of its London sites due to the Coronavirus pandemic, it has since reopened its Mayfair restaurant for takeaway and delivery via Deliveroo, UberEats and Supper.
The group's contemporary dim sum restaurant Yauatcha, and modern-Japanese concept Sake no Hana, are also both operating delivery and takeaway services.