
Chef in Residence
Lucho Martinez
Chef

Em holds a Michelin star and an Opinionated About Dining North America ranking, operating out of a minimalist dining room on Tonalá in Roma Norte. Chef Lucho Martinez runs a seasonal omakase alongside an à la carte menu that draws on both Mexican and Japanese culinary frameworks. The kitchen opens five evenings a week, with service from Thursday through Monday.
<h2>Roma Norte and the Counter-Dining Shift in Mexico City</h2><p>Mexico City's fine-dining conversation has long been anchored to Polanco, where <a href="https://www.enprimeurclub.com/restaurants/pujol-mexico-city-restaurant">Pujol</a> and Quintonil cemented the international case for modern Mexican cooking at the $$$$ tier. The shift worth watching over the past several years is a quieter one: Roma Norte has developed its own serious restaurant presence, partly through neighbourhood character and partly through a generation of chefs who chose lower-rent creative space over the prestige-address premium. Em, on Tonalá 133, is one of the clearest expressions of that shift.</p><p>The dining format itself signals where Em sits in the city's hierarchy. An omakase-led structure in Mexico City remains a small, specialist category. The format borrows its logic from Japan, with fixed sequencing and chef-controlled pacing, then applies that approach to a kitchen working from Mexican raw materials and reference points. That combination places Em outside the mainstream of Mexican tasting-menu restaurants and inside a narrower comparable set of venues where the format itself carries meaning.</p><h2>The Kitchen's Frame of Reference</h2><p>The cross-cultural structure at Em is not a gimmick applied after the fact. Mexican and Japanese culinary traditions share a genuine set of overlapping values: respect for seasonal produce, restraint in technique where the ingredient quality is high, and a bias toward umami-forward flavour profiles. Fermentation, curing, and the use of dried or preserved forms of an ingredient alongside its fresh state appear in both traditions. A kitchen that moves between them is working with consonance as much as contrast.</p><p>This matters in the Mexican regional context. The diversity of Mexico's culinary geography, the smoked chillies and chocolate-based moles of Oaxaca, the citrus-driven ceviches and recados of the Yucatán Peninsula, the layered pipians of Puebla, the seafood-centric cooking of Baja, gives a Mexico City kitchen drawing on national ingredients an enormous palette. Em's seasonal omakase format is well-suited to that breadth: sequences can shift between the acidic and the earthy, the raw and the deeply cooked, in ways a printed menu fixes in place. Restaurants like <a href="https://www.enprimeurclub.com/restaurants/levadura-de-olla-restaurante-oaxaca-restaurant">Levadura de Olla Restaurante in Oaxaca</a> root themselves in a single regional tradition; Em works at the capital-city level, synthesising across those traditions rather than representing any one of them.</p><p>For comparison at the Mexico City level, <a href="https://www.enprimeurclub.com/restaurants/expendio-de-maiz-mexico-city-restaurant">Expendio de Maíz</a> grounds itself in corn-culture orthodoxy, and <a href="https://www.enprimeurclub.com/restaurants/esquina-comun-mexico-city-restaurant">Esquina Común</a> occupies the approachable neighbourhood end of Roma Norte's dining range. Em sits at a different point on that spectrum: technically ambitious, sequenced, and priced at the $$$ tier rather than the $$$$ bracket where Pujol operates.</p><h2>Recognition and Where It Places Em</h2><p>Michelin awarded Em a single star in both 2024 and 2025, placing it in the tier of restaurants the guide describes as worth a stop on their own terms. The Opinionated About Dining ranking, #408 in North America in 2024, rising to #348 in 2025, adds a peer-sourced data point. Movement upward in that ranking between consecutive years suggests the kitchen is maintaining consistency at a level that registers with repeat visitors.</p><p>Within Mexico City's Michelin cohort, a single-star designation at the $$$ price point is notable. Two-star properties in the city like Pujol and Quintonil operate at $$$$ and carry wider international profiles. Em's position, recognised at the same guide level, at a lower price ceiling, places it in a category of restaurants that reward knowing in advance. The Google rating of 4.2 across 668 reviews reflects a broader audience reaching the same general conclusion.</p><p>For context on how the Michelin one-star tier functions across Mexican destinations, <a href="https://www.enprimeurclub.com/restaurants/le-chique">Le Chique in Puerto Morelos</a> and <a href="https://www.enprimeurclub.com/restaurants/ha-playa-del-carmen-restaurant">HA' in Playa del Carmen</a> represent the Caribbean-coast version of ambitious contemporary Mexican; <a href="https://www.enprimeurclub.com/restaurants/koli-cocina-de-origen-monterrey-restaurant">KOLI Cocina de Origen in Monterrey</a> anchors the northern industrial city's fine-dining claim. Em's position in the capital means it competes for attention with the highest density of serious restaurants in the country.</p><h2>The Room and the Format</h2><p>The dining room on Tonalá is minimal in its design approach. That restraint is a deliberate calibration: in a format where the plate is meant to hold the diner's attention, a visually busy room works against the sequence. Roma Norte's street-level character, a walkable, mid-rise neighbourhood of early-twentieth-century architecture, populated with independent shops and restaurants, provides the texture outside; inside, the kitchen and the food carry the weight.</p><p>Em offers both a seasonal omakase and an à la carte menu, which gives the dining room a flexibility that pure omakase counters in Tokyo or New York do not typically allow. The à la carte option matters at the $$$ price point: it lets a first-time visitor calibrate their order, or a regular visitor return for specific dishes without committing to a full sequence. That structural flexibility is more common in Mexico City than in markets where the omakase format has hardened into a single mandatory format.</p><p>The restaurant takes its name from Emilia, Chef Lucho Martinez's daughter. The kitchen's identity is not reducible to it. What the name signals, practically, is a personal investment in the restaurant's longevity and character, which matters when evaluating whether a restaurant's quality is sustainable or a single-season phenomenon. The OAD ranking improvement from 2024 to 2025 suggests the former.</p><h2>Em in the Wider Mexico Dining Picture</h2><p>Mexico's contemporary fine-dining conversation extends well beyond the capital. <a href="https://www.enprimeurclub.com/restaurants/animalon-valle-de-guadalupe-restaurant">Animalón in Valle de Guadalupe</a> represents the Baja wine-country model, where open-fire cooking and estate-grown ingredients define the format. <a href="https://www.enprimeurclub.com/restaurants/lunario-el-porvenir-restaurant">Lunario in El Porvenir</a> anchors another Baja expression. These are destination restaurants in wine regions; Em is a city restaurant with urban rhythms and evening-only service.</p><p>Mexican cooking has also crossed north of the border in recognisable fine-dining forms. <a href="https://www.enprimeurclub.com/restaurants/alma-fonda-fina-denver-restaurant">Alma Fonda Fina in Denver</a> and <a href="https://www.enprimeurclub.com/restaurants/carino-chicago-restaurant">Cariño in Chicago</a> represent the diaspora end of that story. Em, by contrast, sits at the source, a kitchen in the capital synthesising the country's regional traditions for a dining room in the city that produces and consumes more of Mexico's restaurant culture than anywhere else.</p><p>For those building a broader Mexico City itinerary, <a href="https://www.enprimeurclub.com/restaurants/maximo-mexico-city-restaurant">Máximo</a> and <a href="https://www.enprimeurclub.com/restaurants/taqueria-el-califa-de-leon-mexico-city-restaurant">Taquería El Califa de León</a> cover different registers of the city's eating range.</p><h2>Planning Your Visit</h2><p>Em operates Monday through Saturday from 4 to 9:30 pm, with Sunday closed. That schedule is tighter than many comparable restaurants, which makes advance planning worth the effort. The address, Tonalá 133, Roma Norte, is accessible from multiple points in the city, with the neighbourhood well-served by Uber and a short walk from the Insurgentes metro corridor. The dress code is smart casual, and reservations are essential. At the $$$ price point, Em sits below the $$$$ ceiling of Mexico City's two-star properties while delivering single-star recognition, a price-to-credential ratio that positions it as a logical first or repeat entry into the city's serious dining tier.</p>
Em is located at Tonalá 133, Roma Nte., Cuauhtémoc, 06700 Ciudad de México, CDMX, Mexico, Mexico City.
Pricing at Em is listed as $$$.
Em has received recognition including: Opinionated About Dining Top Restaurants in North America Ranked #348 (2025); Chef: Lucho Martinez document.addEventListener("DOMContentLoaded", function() { var el = document.getElementById("Achievements_chefs"); if (el && el.parentNode) {….
Em runs a seasonal omakase format, meaning the menu shifts with ingredient availability and Lucho Martinez's current direction, so no single dish anchors the experience across visits. The kitchen's premise, blending Mexican and Japanese culinary traditions with unexpected pairings, is the through-line rather than any fixed signature. Opinionated About Dining ranked Em #348 in North America for 2025, and Michelin has awarded it one star in both 2024 and 2025, suggesting the format consistently delivers at the level critics track. Booking the omakase rather than ordering à la carte gives the fullest picture of what the kitchen is currently doing.
Hours at Em: Hours: Monday 5:30–9:45 pm Tuesday Closed Wednesday Closed Thursday 5:30–9:45 pm Friday 5:30–9:45 pm Saturday 5:30–9:45 pm Sunday 5:30–9:45 pm.
Tonalá 133, Roma Nte., Cuauhtémoc, 06700 Ciudad de México, CDMX, Mexico
Cuauhtémoc

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