What Is a Taco? A Serious Guide to Mexico’s Most Joyful Food

Some people may laugh at this question. I understand. But based on my experience in running Fiesta, I can tell you this: more than once, people have asked our staff, very seriously, “What is a taco?”

And honestly, that is a bit crazy, but fair enough.

The taco is one of the most famous foods in the world, yet also one of the most misunderstood. For some people, it means a crunchy supermarket shell filled with minced beef, grated cheese and regret. For others, it means a small corn tortilla, still warm, topped with meat, salsa, onions and coriander, eaten standing up on a street in Mexico with zero time for nonsense. Which is which?

So let’s settle it properly.

What is a taco: my definition

A taco is a Mexican dish built around a tortilla and a filling. At its most basic, it is a hand-sized food of Mexican origin made by placing meat, vegetables, beans, seafood or other fillings on a corn or flour tortilla, which is then folded or rolled enough to eat by hand. The tortilla is not an accessory. It is the vessel, the structure, the base, the whole point. Without the tortilla, you do not have a taco.

That point matters because a taco is not just “anything wrapped in bread.” It is not a burrito, not a quesadilla, not a tostada, not a random snack with salsa nearby. The taco is a specific format, and in Mexican food, that format has standards, history and regional identity. Corn is especially important to that story: maize has been central to Mexican food culture for thousands of years, and tortillas are one of its most foundational expressions.

A proper taco can be humble or luxurious. It can be stuffed with slow-cooked barbacoa or simple beans. It can be sold at a market stall, a neighbourhood taquería, or a Michelin-starred counter. The taco is democratic like that. It does not care who you are. It only cares whether the tortilla is good and the filling is delicious.

A brief history of tacos in Mexico

The exact origin of the taco (historia tacos mexicanos) is debated, which is a polite academic way of saying: historians do not fully agree, but everyone agrees the taco is deeply tied to Mexico. One influential theory links the term to 18th-century silver mines, where “taco” referred to little paper charges of gunpowder used in excavation. Later references to tacos appear in the late 19th century, including mentions of tacos de minero, or miners’ tacos.

What is clearer is that tacos became part of urban popular food culture in Mexico through working-class neighbourhoods and migration into Mexico City. As people from different regions moved into the capital, they brought different fillings, styles and preparations with them. In that sense, I believe, the taco became not just a dish but a portable map of Mexico.

Yet the tortilla itself goes back far earlier. Britannica notes that maize was domesticated in Mexico at least 9,000 years ago, and one of the earliest uses of ground maize was likely the tortilla. So while the modern taco as a named dish may not be prehistoric in its present form, its foundation absolutely is. And the nixtamalization process dates back thousands of years (see my articles on tortillas and masa).

Tacos later crossed into the United States alongside Mexican migrants, appearing in U.S. references by the early 20th century. From there, they entered American food culture, were adapted, commercialised and, in my opinion, in some cases, mildly assaulted.

Main types of tacos

One reason people ask “what is a taco?” is because there is no single taco. There are many tacos, and Mexico takes that diversity very seriously.

In Mexico City street food alone, official city guides highlight tacos al pastor, tacos de guisado and tacos de parrilla as key categories. That already shows how broad the taco world is: spit-roasted meats, home-style stews, and grilled fillings (accordingly) all belong comfortably under the same tortilla roof.

A useful way to think about tacos is by style rather than by one fixed recipe.

Tacos al pastor are among the most iconic: marinated pork cooked on a vertical spit, often associated with pineapple top and the legacy of Middle Eastern influence in Mexico. Smithsonian notes that tacos al pastor became especially prominent by the 1960s and are now a standard Mexican dish.

Tacos de guisado are filled with stewed preparations: beans, potatoes, tinga, picadillo, vegetables and many other cooked fillings. These are comforting, practical and deeply convenient everyday tacos.

Tacos de parrilla or grilled tacos often feature meats cooked over direct heat, such as asada, bistek or chorizo.

Beyond those, taco culture includes endless regional and local expressions: seafood tacos on the coasts (see my notes in Palapa article), barbacoa on weekends, basket tacos for fast street eating, and countless seasonal or house-special versions. That is why “what is a taco?” is a better question than it first sounds. A taco is a category, a vessel, but it is also a language.

Different Types of Tacos: It Is Not Just About the Filling

It would be too simplistic to talk about tacos only in terms of how protein is cooked. Yes, fillings matter hugely, but in Mexico, many tacos are also named by format, texture, cooking method, and locality. That is part of what makes tacos such a fascinating food culture: even before you choose the filling, the taco itself may already belong to a completely different family.

Some tacos are defined by how they are built

A campechano usually means a mixed taco, very often two meats rather than one, the kind of taco for those of us who struggle to choose and prefer to have both.

A costra is all about cheese: a crisp, caramelised cheese crust that acts almost like part of the taco itself. It is indulgent, messy, and glorious when done well.

A mulita takes things into tortilla-sandwich territory: meat and cheese tucked between two tortillas, then griddled until everything turns crisp and toasty. It sits somewhere between a taco and a quesadilla, and that is precisely why people love it.

A gringa lives in a similar territory. It is usually associated with al pastor and melted cheese pressed between two flour tortillas. Purists may argue it is closer to a quesadilla than a taco, but I think that in real taqueria life it absolutely belongs in the conversation.

And then there is alambre, which, to me, is perhaps the closest Mexican answer to a cheesesteak: chopped meat cooked with peppers, onions, often bacon, and melted cheese, then spooned into tortillas.

Some tacos are defined by texture

A volcán starts with a tortilla toasted until it turns firm and crisp, then topped with melted cheese and meat. In northern Mexico, a very similar style is often called a vampiro. Same delicious logic: crisp tortilla, melted cheese, proper savoury toppings, and a lot of crunch.

Then you have tacos dorados, which literally means fried tacos. These are folded or rolled, then fried until golden and crisp. Depending on size and shape, they may also drift into flauta or taquito territory.

Some tacos are defined by how they are cooked or sold

Tacos de canasta are one of the great street-food classics. These are small tacos filled, stacked in a basket, layered with onions and hot oil, then left to steam and sweat in their own heat. They are strongly associated with Tlaxcala, even though today you see them all over Mexico.

Tacos de guisado, as mentioned above, are another huge category and, for me, one of the most underrated. These are tacos filled with spoonable home-style stews from cazuelas or steam trays: potatoes with rajas, picadillo, tinga, chicharrón en salsa, beans, and countless other guisos. They feel less flashy than trompo tacos, but deeply Mexican and deeply comforting.

Tacos acorazados from Morelos are “armoured” tacos built on a double tortilla, usually with a layer of rice and then a guisado on top. They are hearty, practical, and very much their own thing.

Local and regional taco varieties worth knowing

Puebla gives us the famous tacos árabes, one of the clearest examples of migration shaping Mexican food. These are linked to Middle Eastern influence, traditionally made with spit-roasted pork and served in pan árabe, which is part of what makes them feel different from your usual taqueria taco.

Sonora brings several forms that deserve a mention. A caramelo is a substantial Sonoran-style taco where carne asada and melted cheese are sandwiched inside a flour tortilla. A lorenza is more open-faced and crisp, it is closer to a tostada-taco hybrid, usually with beans, cheese, and grilled beef.

From Sinaloa, tacos gobernador are another important regional style: usually shrimp, sautéed with peppers and onions, often with melted cheese.

And from Tampico, you get cachetadas, which are better treated as a regional speciality than a chefy taco trend. The name is associated with the fast “slapping” rhythm of the comal work, and traditional versions are tied to fillings like beans and shredded beef, though modern taquerias sometimes riff on the idea with premium cuts.

For a more contemporary taco name of note, I would like to mention gaonera. It is the signature taco at Michelin-starred El Califa de León in Mexico City: thinly sliced beef filet, cooked very simply with salt and lime. To me, it is a great reminder that sometimes a great taco is not about excess at all, but precision and restraint.

So yes, tacos can absolutely be discussed by filling: al pastor, birria, carnitas, barbacoa, mushrooms, fish, whatever you like. But that is only half the story.

The taco world is also about form: mixed, crisped, steamed, stacked, cheese-crusted, basket-held, and local: Sonoran, Poblano, Sinaloan, Mexico City-style. And once you start looking at tacos that way, you realise just how big the taco universe really is.

Taco eating etiquette rules

Now we move into important civilisation matters.

A taco should usually be eaten with your hands. Not with a knife and fork unless the situation is catastrophic and you are trying to preserve your shirt, your dignity, or both.

The basic etiquette is simple. Eat tacos promptly, while the tortilla is still warm and flexible. Hold the taco gently but with commitment. Add salsa carefully, because overconfidence has ruined many shirts and first dates. Use lime to add that zesty brightness to your taco. Take the bite from the side that gives you the best balance of filling and tortilla.

Also, a taco is not meant to be overbuilt until it resembles a structural engineering failure. A good taco should be generous, but not absurd. If it requires a business plan, it may be a wrap instead. For the 5in tortilla, I usually put 50-70g of protein (refried beans are heavier and more compact, whereas soyrizo is very light, so you adjust this for your tacos), 20 ml of salsa (usually two for contrast) and just a touch of fresh topping like onion-coriander.

And yes, sometimes you’d see that two tortillas are used, which is not “too much carb.” That is street wisdom. The second tortilla often catches juices and fallen filling, which means it is basically the sequel taco. So it helps if you’re in a street market, but not necessary if you’re eating ‘dine-in’.

Tacos in Mexico: what is traditional and what is Americanised?

This is where arguments begin.

A traditional taco in Mexico is usually smaller, softer and more restrained than what many people outside Mexico imagine. The emphasis is often on the tortilla, the meat or filling, and a few sharp accompaniments such as salsa, chopped onion, coriander, radish or lime. The goal is flavour, contrast and balance, not maximum interior decoration like some across the Northern border think.

What many international diners picture instead is the U-shaped crunchy hard-shell taco stuffed with seasoned ground beef, cheddar, lettuce, tomato and sour cream. That style is part of taco history too, but it belongs more clearly to the Mexican-American and U.S. commercial evolution of the taco. Smithsonian notes that the fast-food taco depended on the pre-fried “taco shell,” which allowed the format to be industrialised and sold far beyond Mexican communities. So you can call it a taco, but it is not artisanal and freshly produced – it is designed for the mass-market fast food operations. Just saying.

A good rule is this: in Mexico, the taco usually begins with tortilla culture. In much of the Americanised version, it begins with filling strategy and supermarket convenience. Both can be tasty. But I think only one should be allowed to lecture the other.

Taco fusion: what is popular around the world?

The taco has travelled extremely well because it is an incredibly adaptable format. Once a food is portable, hand-held, flavour-friendly and emotionally reassuring, the world tends to adopt it.

In the United States especially, tacos became part of a much wider Mexican-American food revolution. The Smithsonian’s National Museum of American History describes tacos, taco kits, taco fryers and related products as part of the broader mainstreaming of Mexican-American food in American home and restaurant culture.

At the same time, fusion tacos became symbols of cultural mixing. Smithsonian wrote that Korean tacos came to represent Asian-Latino exchange, especially in the food-truck era. That makes sense: the taco is a brilliant format for migration, adaptation and experimentation. Put kimchi in it, for an Indian twist put paneer in it, for plant-based variations, put cauliflower or mushrooms in adobo in it (here are my notes on plant-based tacos, tofu tacos and 7 of my favourite vegan tacos). The tortilla is surprisingly diplomatic.

Around the world, popular fusion taco directions often include Korean tacos, vegan tacos, fish tacos adapted to local seafood, breakfast tacos, and chef-driven fine-dining tacos with highly local ingredients (in my best Mexican cookbooks review, I underline the work of Alex Stupak and his Tacos: Recipes and Provocations book, which contains some of my favourite fusion taco ideas). Some are brilliant. Some are crimes. The line is thin, and usually covered in salsa picante.

What is Taco Tuesday?

Taco Tuesday is a U.S. cultural ritual, marketing phrase and meme ecosystem built around eating tacos on Tuesday. Know Your Meme traces the phrase to Taco John’s in the early 1980s, and notes that it later became a recurring internet joke and catchphrase.

The modern legal drama around the phrase became famous in 2023, when Taco Bell publicised the relinquishing of the Taco Tuesday trademark registrations, saying the phrase should belong to everyone who makes, sells and eats tacos. By October 2023, Taco Bell stated that Taco Tuesday was free to use in all 50 U.S. states.

So what is Taco Tuesday, really? It is part promotion, part weekly excuse, part communal food event. It is not an ancient Mexican tradition. It is a modern North American taco ritual. That does not make it bad. It just means we should keep our history straight while enjoying the discount.

What are the most popular taco jokes and taco memes?

Taco humour lives in a few predictable zones.

The first is Taco Tuesday panic: jokes about forgetting it is Tuesday, missing tacos, or treating Tuesday tacos as a sacred weekly obligation. That meme pattern has circulated online for years.

The second is “white people tacos” humour: jokes about grocery-kit crunchy tacos, packet seasoning, shredded iceberg lettuce and enormous quantities of yellow cheese. The meme is recognisable because so many people grew up with that version, even if it is very far from the tacos of Mexico.

The third is pure taco absurdism: tacos falling from the sky, tacos as emotional therapy, tacos as a life philosophy, tacos as the answer to questions nobody asked. This is where internet culture stops pretending to be normal and starts doing its best work.

A few original taco jokes for the road:

A taco is the shortest distance between hunger and happiness.

Behind every confident person is at least one very good taco.

I trust people who respect salsa levels. I fear people who say “medium is crazy.”

Never argue with someone holding a hot taco. They have nothing left to lose.

And perhaps the most important truth of all: one taco is a snack, two is a decision, three is a personality.

What is all this about “It’s Raining Tacos”?

“It’s Raining Tacos” is a novelty song by Parry Gripp, with animation by BooneBum. On Parry Gripp’s official site, the song is listed as released on January 1, 2012.

From there, it grew into a weird little internet monument. Know Your Meme describes it as a viral song and music video from 2012 that later inspired fan covers, animations and community remixes, especially in game-oriented online spaces. In other words, it became one of those deeply unserious pieces of internet culture that somehow survives because it is catchy, harmless and gloriously stupid.

Why did it stick? Because the idea is perfect meme fuel. Tacos are already beloved. Rain is already dramatic. Combine the two, add cheerful nonsense, and you get a song that lives forever in the exact corner of the internet where children, gamers and tired adults briefly agree on something. And we all know Spice Girls with their ‘It’s Raining Men’, so why wouldn’t it rain tacos?

The meme also captures a deeper truth: taco culture can be serious, historical and deeply rooted in Mexican identity, and at the same time ridiculous, playful and memeable. The taco does not need to choose between dignity and joy.

Final answer: so, what is a taco?

A taco is a Mexican tortilla-based dish built for the hand, the appetite and the imagination. It is rooted in Mexico’s maize culture, shaped by regional cooking (CDMX vs Yucatan vs Oaxaca – all would be so different), expanded by migration, reinvented across borders and endlessly misunderstood by people who think a hard shell and shredded lettuce tell the whole story.

A taco can be traditional, modern, local, global, humble or luxurious. It can be a working lunch, a street snack, a late-night ritual, a full-blown obsession or a high-end fine dining indulgence. It can also be a meme, a Tuesday tradition, or a song about tacos falling from the sky.

But above all, a taco is not just a food category.

It is a format, a vessel with a rich history. A craft with standards. A pleasure with rules. And, when done properly, one of the greatest things you can hold in one hand.

If a customer ever asks again, “What is a taco?” – now you have an answer. And similarly, you now know what isn’t a real Mexican taco. Provecho!