Street XO

Salamanca's Asian Street Format

On Calle Serrano, Madrid's most concentrated stretch of international fashion retail, the casual offshoot of a three-Michelin-star kitchen operates without the ceremony that a three-star flagship implies. Street XO sits at number 47 in the Salamanca district, a neighbourhood whose dining room normally skews conservative, traditional Spanish cooking, white tablecloths, wine lists heavy on Rioja and Ribera del Duero. An Asian street food format in this postcode is a deliberate friction point, and that friction is part of what the restaurant is doing.

Across Europe's major cities, serious kitchens have developed casual-format siblings with smaller price points, looser service, and shorter menus that carry the creative DNA of their parent restaurants without the full tasting-menu apparatus. Street XO belongs to that cohort. DiverXO, the three-star operation that David Muñoz runs elsewhere in the city, operates in an entirely different tier: €€€€, high ceremony, long formats. Street XO is the same creative vocabulary applied to a faster, more accessible register.

The Lunch and Dinner Divide

Street XO runs noon to midnight seven days a week, which is an unusual operational commitment in a city where most serious kitchens keep tighter hours and close at least one day. That schedule creates a real distinction between how the space functions at lunch versus dinner, and how the same menu reads differently depending on when you arrive.

Lunch at Street XO draws a Salamanca crowd: neighbourhood regulars, professionals from nearby offices, shoppers breaking from Serrano's retail strip. The room at midday is a different social environment from what it becomes by nine in the evening. Madrid eats late by European standards, dinner before nine is unusual, and the kitchen's midnight close means the later hours attract a different demographic, one that has already eaten elsewhere and is looking for something between a second dinner and a late-night session. The format accommodates both without committing fully to either.

In practical terms, this means lunch is the more considered visit. The room is quieter, the pace is slower, and the menu, Asian street food filtered through the technical instincts of a kitchen trained at the highest level, has space to be read carefully rather than consumed quickly. Dinner, particularly from ten onwards, functions more like a late-night dining bar: the same kitchen output, but wrapped in a different energy. Neither is wrong, but they are different experiences, and the choice between them should be deliberate.

The all-day, all-week model, noon to midnight, no dark days, is an operational philosophy that treats every service as equal. It resists the traditional European model of long closures and short service windows, and it positions Street XO less like a restaurant and more like a serious food destination that happens to be open whenever you want it.

Where Street XO Sits in Madrid's Competitive Field

Madrid's leading creative kitchens cluster at the €€€€ tier: Coque, Deessa, DSTAgE, and Paco Roncero all operate at the high end of Madrid's fine-dining bracket. Street XO occupies a different position: it draws from the same creative pool but operates at a lower price point and in a casual format, which places it in a different competitive set entirely, closer to the serious casual tier than to the tasting-menu circuit.

Opinionated About Dining has tracked Street XO's position in its Casual Europe list across three consecutive years: Recommended in 2023, ranked #511 in 2024, and ranked #637 in 2025. The year-on-year ranking movement is worth reading carefully. A drop from #511 to #637 in a list covering thousands of restaurants across the continent does not indicate a decline in quality, OAD rankings are driven by voter sample size and recency weighting, and a position in the top 700 of Europe's casual dining scene across three consecutive years signals consistent recognition in a competitive category. For context, Spain's broader fine-dining scene includes operations like El Celler de Can Roca in Girona, Arzak in San Sebastián, Aponiente in El Puerto de Santa María, Quique Dacosta in Dénia, and Azurmendi in Larrabetzu, all operating at the highest formal tier. Street XO is not in that conversation, nor does it try to be. Its comparable set is the casual-creative category, and within that category it holds a documented position.

The Google review aggregate, 4.4 across 8,983 reviews, is a volume signal as much as a quality signal. A 4.4 at that sample size, in a city where casual dining generates strong opinions, indicates broad satisfaction without the polarisation that sometimes accompanies more experimental formats. It is the score of a restaurant that consistently delivers on what it promises, rather than one that divides opinion sharply.

For comparison, the kind of serious casual format that Street XO represents has equivalents in other markets: Atomix in New York sits at a different price point entirely, while Le Bernardin demonstrates how a chef's formal flagship and a more accessible format can coexist in the same city. Disfrutar in Barcelona operates a different model altogether, no casual sibling, maximum formality, which underlines that the flagship-plus-casual-format model is a choice, not a default.

Planning Your Visit

Street XO is located at C. de Serrano, 47, in the Salamanca district of Madrid. Hours: Monday through Sunday, 12:00 noon to midnight. Getting there: The Salamanca district is well-served by Madrid's metro network; Serrano station on Line 4 places you directly on the street.