The Ultimate Argentine Lomito Sandwich Recipe (Step-by-Step Guide + Video)

argentine lomito sandwich recipe

Ingredients

  • 1 beef tenderloin steaks
  • 1 fresh French roll or round bun
  • 1-2 slices of cooked ham
  • 1 slice of mozzarella or provolone
  • 1 fried egg
  • 2-3 tomato slices
  • Fresh Lettuce
  • Mayonnaise
  • Salt and Black Pepper

If there’s one sandwich that captures the spirit of Argentine street food and steak culture in a single bite, it’s the Lomito. Rich, meaty, slightly messy, and deeply satisfying, the lomito sandwich is often considered the heavyweight champion of Argentine sandwiches.

You’ll find it at gas stations, kiosks, street carts, and fast-casual joints across the country. It’s the sandwich you order after a night out, or when you’re starving and only steak will do.

What Is a Lomito Sandwich?

The Lomito gets its name from the star ingredient: lomo, or beef tenderloin. It’s a thin, juicy steak grilled or pan-seared and packed into a soft roll alongside:

  • Ham
  • Melted cheese
  • Lettuce
  • Tomato
  • Mayonnaise
  • A perfectly fried egg

Some versions include onions, chimichurri, or mustard. But the foundation remains the same, a hot, stacked, beef-forward sandwich that delivers punch with every bite.

Everything starts with choosing the right ingredients, so let’s dive in.

argentine lomito sandwich recipe

Ingredients for a Classic Lomito

  • 1 beef tenderloin steak (approx. 150g / 5oz)
  • 1 fresh French roll or round bun
  • 1–2 slices of cooked ham
  • 1 slice of mozzarella or provolone
  • 1 fried egg
  • 2–3 tomato slices
  • Fresh lettuce leaves
  • Mayonnaise
  • Salt & black pepper

Optional Add-ons:

  • Caramelized or grilled onions
  • Chimichurri
  • Bacon
  • Mustard or ketchup (less common but used)

Lomito Sandwich Recipe

Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Course Main Course
Cuisine Argentina
Servings 1 people

Ingredients
  

  • 1 beef tenderloin steaks
  • 1 fresh French roll or round bun
  • 1-2 slices of cooked ham
  • 1 slice of mozzarella or provolone
  • 1 fried egg
  • 2-3 tomato slices
  • Fresh Lettuce
  • Mayonnaise
  • Salt and Black Pepper

Instructions
 

  • Grill or sear the steak over high heat for 2–3 minutes per side, season with salt and pepper, then let it rest.
  • Fry the egg until the white is set and the yolk is still slightly runny.
  • Cut and lightly toast the bun or French roll.
  • Spread mayo on both inner sides of the bread.
  • Add lettuce and tomato to the base.
  • Place the steak on top, followed by ham and cheese.
  • Add the fried egg on top.
  • Press the sandwich slightly to hold it together and wrap in parchment or foil if desired.

Step-by-Step: How to Make a Lomito

Step 1: Cook the Steak
Grill or sear the steak over high heat for 2–3 minutes per side depending on thickness. Season with salt and pepper. Let it rest.

Step 2: Fry the Egg
Cook until the white is set and the yolk is still slightly runny. The yolk adds richness to the sandwich.

Step 3: Toast the Bread
Cut and lightly toast the bun or French roll to keep it from going soggy.

Step 4: Assemble the Layers

  • Spread mayo on both inner sides of the bread
  • Add lettuce and tomato
  • Place the steak on the base
  • Top with ham and cheese
  • Add the fried egg on top

Step 5: Press and Serve
You can press the sandwich slightly to help everything hold together. Wrap in parchment or foil if you’re going for that roadside-shop vibe.

Lomito Carne On The Grill

argentine lomito sandwich recipe

The Lomito’s Role in Argentine Food Culture

The Lomito is more than just a sandwich—it’s a late-night hero, a road trip essential, and a lunchtime reward. It’s rich, protein-heavy, and totally satisfying. You’ll find regional takes on the classic throughout Argentina, with different add-ons and sauces.

In Mendoza or Córdoba, for example, some shops add a local twist like spicy salsa or unique breads. But the essence remains the same: quality steak, bold ingredients, no shortcuts.

Tips for a Great Lomito

  • Don’t overcook the steak. Medium or medium-rare works best for flavor and tenderness.
  • Use fresh, soft bread. You need it to hold everything without falling apart.
  • Balance the textures. Crispy lettuce, juicy steak, and runny egg make it dynamic.
  • Go easy on sauces. Mayo is traditional, and a bit of chimichurri works. Avoid anything too sweet.

Serving Suggestions

  • Pair with fries or papas pay (shoestring fries)
  • Drink options: cold beer, Coke, or red wine
  • Best served hot, eaten with both hands, ideally outside

Final Thoughts

The Lomito is Argentina in sandwich form—high-quality beef, no-nonsense layers, and unapologetic flavor. It doesn’t need fancy plating or fusion twists. All it asks is that you show up hungry.

Whether you’re recreating a memory from a parador on Ruta 40 or discovering it for the first time, the lomito will win you over.

It’s not just a steak sandwich, it’s like a rite of passage. Everywhere from football stadiums to nightclubs, the lomito is a versatile player, and shouldn’t be overlooked.

ABOUT THE AUTHOR
Jason Pittock
Argentine Asado Founder

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