The British pop singer opened La Dua, a temporary taco shop where registered fans can eat tacos and sip drinks in her honour.
La Dua's menu is headlined by three specialty tacos - all inspired by her songs and albums: The pork rind Houdini Taco, the flank steak Taco Maria, and the cheesy beef barbecue Radical Optimism Taco.
Patrons can also order consommé and drinks such as Training Season Water (cucumber and lemon), beer or a lemon tequila margarita. The entire menu is priced at 249 pesos (about $A21).
With about 800 people expected every day through to Friday, La Dua taqueria was sold out on Monday.
Gerson Silis secured a spot to be one of the very first to attend.
"Dua Lipa is my favourite singer, so having these kinds of experiences is very good for all of us who are fans," he said. "I love it."
Also included with the menu was a gift bag containing napkins, a taquero hat and a 2026 calendar featuring Dua Lipa, designed to mimic the classic calendars found in authentic Mexican taquerias.
"I'm going to frame it, in my room," said Fernanda Reyes, 23, adding that her favorite taco was Radical Optimism.
La Dua pop-up taqueria is located within the premises of an existing taco shop, Tacos Los Caramelos, in the upscale Condesa neighbourhood.