If you have a craving for something hearty, flavorful, and totally satisfying, then this Uruguayan Steak Sandwich Recipe is going to become your new favorite go-to. Picture tender, juicy flank steak grilled to perfection, nestled inside crusty baguettes with creamy avocado, fresh tomato, grilled onions, and a zesty chimichurri sauce that ties it all together. Each bite bursts with vibrant flavors and textures that bring a true taste of Uruguay straight to your kitchen. It’s a dish that feels special but comes together in no time, perfect for sharing with friends or treating yourself to a deliciously elevated sandwich experience.

Ingredients You’ll Need
This Uruguayan Steak Sandwich Recipe uses simple, straightforward ingredients that each play a key role in building its irresistible flavor and texture. From the savoriness of the steak to the brightness of the tomato and chimichurri, every item is essential to the magic happening between those baguette slices.
- 1 pound flank steak: A lean cut that cooks quickly and absorbs seasoning beautifully for maximum flavor.
- 2 large baguettes: Crisp on the outside and soft on the inside, perfect for holding all the fillings without getting soggy.
- 1 avocado, sliced: Adds creamy richness that balances the steak’s savoriness.
- 1 tomato, sliced: Offers juicy freshness and a pop of color.
- 1 onion, grilled: Sweet and slightly charred, enhancing the sandwich’s overall depth.
- 2 tablespoons olive oil: For cooking the steak tenderly and giving it a subtle fruity note.
- 1 teaspoon salt: Brings out the natural flavors of the steak and veggies.
- 1 teaspoon black pepper: Adds a gentle heat and aromatic lift.
- 1 tablespoon chimichurri sauce: The signature herbaceous condiment that brightens and ties everything together.
How to Make Uruguayan Steak Sandwich Recipe
Step 1: Season the Steak
Start by generously seasoning your flank steak with salt and black pepper. This basic step is crucial as it enhances the meat’s natural richness and sets the flavor foundation for your sandwich.
Step 2: Heat the Olive Oil
Warm your olive oil in a skillet over medium-high heat until shimmering. The oil not only prevents sticking but imparts a fruity aroma that subtly infuses the steak.
Step 3: Cook the Steak
Place the steak in the hot skillet and cook for about 4 to 5 minutes on each side, depending on your preferred doneness. The goal is a beautifully seared exterior with a juicy interior that’s full of beefy goodness.
Step 4: Rest and Slice the Steak
Remove the cooked steak from the heat and let it rest for a few minutes. Resting allows the juices to redistribute, ensuring that every bite is tender and moist. Then slice the steak thinly to layer into your sandwich.
Step 5: Assemble the Sandwich
Cut the baguettes in half lengthwise, then start layering. Begin with the sliced steak, followed by creamy avocado slices, juicy tomato, and caramelized grilled onion. Top everything off with a generous dollop of chimichurri sauce for that unmistakable South American flair.
Step 6: Serve and Enjoy
Your Uruguayan Steak Sandwich Recipe is ready to devour! Serve immediately to enjoy the contrast of textures and flavors at their peak freshness.
How to Serve Uruguayan Steak Sandwich Recipe

Garnishes
To elevate your sandwich even further, consider adding a few fresh herb sprigs such as parsley or cilantro on the side. A sprinkle of flaky sea salt or an extra drizzle of chimichurri on top can bring an eye-catching finish that brightens every bite.
Side Dishes
Pair this delicious sandwich with classic sides that won’t steal the spotlight but will perfectly complement the star. Think crispy French fries, a simple green salad with vinaigrette, or even some roasted vegetables to round out the meal.
Creative Ways to Present
Serve these sandwiches on rustic wooden boards for a casual vibe or cut them diagonally and secure with toothpicks for an inviting party platter. Adding a small dipping bowl of chimichurri sauce on the side invites guests to customize each bite.
Make Ahead and Storage
Storing Leftovers
If you find yourself with leftovers after indulging in this Uruguayan Steak Sandwich Recipe, wrap them tightly in foil or plastic wrap and store in the refrigerator. The meat and veggies will stay fresh for up to 2 days, making a perfect next-day lunch.
Freezing
While the steak and ingredients are best enjoyed fresh, you can freeze the cooked steak slices separately. Freeze in an airtight container or freezer bag for up to 3 months. Avoid freezing the assembled sandwich to maintain texture and flavor quality.
Reheating
When reheating leftover steak, gently warm it in a skillet over low heat or briefly in the microwave to keep it tender and juicy. Assemble your sandwich fresh with cold ingredients like avocado and tomato to preserve their vibrant texture.
FAQs
Can I use a different cut of steak for this recipe?
Absolutely! While flank steak is traditional and perfect for quick cooking, skirt steak or sirloin can also work well. Just adjust the cooking time accordingly to keep the meat tender.
What makes chimichurri sauce special in this sandwich?
Chimichurri sauce is a tangy, herb-packed condiment that adds a refreshing contrast to the rich steak. Its garlicky, acidic punch lifts the flavors and keeps every bite exciting.
Is it okay to toast the baguette before assembling?
Yes! Toasting the baguette adds a delightful crunch and helps it hold up against the juicy fillings without becoming soggy, making the sandwich even more enjoyable.
Can I prepare this sandwich for a crowd?
Definitely. The simple ingredients and quick cooking process make it a fantastic option for entertaining. Just scale up the quantities and slice the sandwiches into smaller portions if desired.
What’s the best way to slice the steak for the sandwich?
Slicing the steak thinly against the grain is key. This breaks up the muscle fibers, resulting in tender, easy-to-chew slices that layer beautifully in the sandwich.
Final Thoughts
You really can’t go wrong with this Uruguayan Steak Sandwich Recipe; it’s a dish that feels both indulgent and approachable, bursting with fresh flavors and textures you’ll want to enjoy again and again. Whether you’re feeding friends or treating yourself to a special lunch, give it a try and discover why it’s a beloved classic in Uruguay and beyond.
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Uruguayan Steak Sandwich Recipe
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: 4 servings
- Category: Sandwich
- Method: Frying
- Cuisine: Uruguayan
Description
A delicious Uruguayan steak sandwich featuring perfectly seared flank steak, fresh avocado, tomato, grilled onion, and flavorful chimichurri sauce layered inside crusty baguettes. This recipe combines vibrant South American flavors with simple, speedy preparation for a satisfying meal.
Ingredients
Steak
- 1 pound flank steak
- 1 teaspoon salt
- 1 teaspoon black pepper
- 2 tablespoons olive oil
Sandwich
- 2 large baguettes
- 1 avocado, sliced
- 1 tomato, sliced
- 1 onion, grilled
- 1 tablespoon chimichurri sauce
Instructions
- Season Steak: Generously season the flank steak on all sides with salt and black pepper to enhance its natural flavors.
- Heat Skillet: Place a skillet over medium-high heat and heat the olive oil until shimmering and hot.
- Cook Steak: Add the steak to the hot skillet and cook for 4-5 minutes on each side, or until it reaches your preferred level of doneness.
- Rest Steak: Remove the steak from the skillet and allow it to rest for a few minutes to let the juices redistribute for a tender bite.
- Prepare Sandwich: Slice the baguettes in half lengthwise. Layer the sliced steak, avocado slices, tomato slices, grilled onion, and drizzle with chimichurri sauce inside the bread.
- Serve: Serve the sandwich immediately while warm and enjoy the vibrantly flavored Uruguayan steak sandwich.
Notes
- Resting the steak is essential for juicy, tender meat.
- Use ripe avocado for creamy texture and flavor.
- Grilling the onion adds a smoky sweet flavor that complements the steak.
- Chimichurri sauce can be store-bought or homemade to add authentic flavor.
- Adjust seasoning and chimichurri quantity based on personal preference.

