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Throw together an easy meal that feeds a crowd.  

This Mediterranean sandwich is bursting with so many flavors! Serve up a tray at your next cookout or make this recipe for a simple meal.  

a steak sandwich on a ciabatta bun with tomatoes and red onions.

Perfectly seasoned flank steak on a ciabatta roll with tomatoes, red onion, and a tangy cucumber and Feta cheese spread — this gyro style grilled steak sandwich is hearty enough to satisfy any appetite!

I also have another flank steak sandwich recipe that is just as delicious as this one. It has intense flavor from the coffee dry rub and homemade horseradish aioli.

Craving more Mediterranean main courses? Try my Greek Chicken Kabobs with Cucumber Sauce or this incredible fish recipe inspired by our time in Venice.

Key ingredients & substitutions for a Mediterranean Sandwich

  • Flank steak — This cut (also known as London Broil) is lean and flavorful, perfect for marinades, dry rubs, or piling onto sandwiches.
  • Seasoning — Use any steak seasoning blend (Weber, Montreal, etc.) or make your own!
  • Ciabatta — This Italian loaf is deliciously chewy with a slightly crisp crust. Make your sandwiches on a full loaf or toast up individual rolls instead.
  • Veggies — Thinly sliced fresh tomatoes and red onion round out the flavors in this grilled steak sandwich.
  • Tangy spread — A delicious combination of sour cream, chopped cucumber, Feta cheese, and spices! I use a blend of dried oregano, garlic powder, and more of that savory seasoning.

tips

  • Substitute plain Greek yogurt for the sour cream in the spread — OR switch up the spread altogether and try this!
  • Experiment with different toppings, like arugula, roasted red peppers, pesto, or even an olive tapenade.

How to make a grilled steak sandwich?

prepping flank steak for the grill; brush on olive oil and sprinkle with spices.

STEP 1 | Season the beef

Brush both sides with olive oil before adding the seasoning. If you’d like, gently press the larger granules into the surface to help them adhere better.

STEP 2 | Toast the bread

Slice the ciabatta loaf horizontally through the middle and toast each half on the grill until lightly browned.

a bowl of cucumber spread; a flank steak on a cutting board with slices to the side.

STEP 3 | Grill

Cook the steak over direct heat for 4 to 5 minutes per side, or until it reaches your desired doneness. Be sure to let it rest before slicing so the juices have time to redistribute — you want every bite to be tender and juicy!

Meanwhile, stir together the sour cream, chopped cucumber, Feta cheese, and spices in a small bowl until well combined.

layers of a flank stead mediterranean sandwich: bottom bun with sauce and tomatoes; slices of beef; thinly sliced red onion.

STEP 4 | Build the sandwiches

Spread the sour cream mixture over one half of the bread, then pile on the tomatoes, beef, and onion. Top with the other half of the loaf and slice into smaller sandwiches for serving.

grilled flank steak on a cutting board with slices laying to the side.

tips

  • Allow the meat to warm for 15 to 30 minutes before grilling! This helps it to cook evenly, all the way through to the center.
  • Medium rare is the ideal temperature for this cut of beef, which is around 135 degrees F. Remove the meat from the grill when an instant read thermometer reads 130 degrees F — it will continue cooking those last 5 degrees as it rests.
  • Prefer a different cook? Find more information and tips for grilling the perfect steaks here!

Frequently asked questions

Can I cook the meat ahead of time?

Yes, but I’ve found that this flank steak sandwich really is best when the meat is fresh off the grill. That said, you can easily save leftover slices to use for lunch the next day! Refrigerate them in an airtight container for 3 to 4 days.

How do you slice flank steaks against the grain?

While the terminology can be a bit confusing, the process is really quite simple! Notice the tough fibers that run through the beef as it rests — you will see lines running across the entire surface, all in the same direction.

Angle the meat so that your knife blade can cut across (perpendicular to) those lines, and slice into thin pieces. Doing so breaks up those tough fibers, allowing each bite to become tender and easy to chew.

What makes this a Mediterranean sandwich?

Many of the dishes from this region feature fresh tomatoes and cucumbers, along with salty Feta cheese. Combined with tender beef and hearty Ciabatta, you’ll be dreaming of a seaside vacation in no time!

an open face steak sandwich on a ciabatta bun with tomatoes and red onions.

Serving suggestions

Capture more of the flavors in this Mediterranean sandwich with a side of Roasted Red Pepper Tapenade or Layered Greek Hummus and some veggie sticks.

In the summertime, pair your grilled steak sandwich with a refreshing Watermelon Salad! It has blueberries, more salty Feta, and a sweet citrus honey dressing.

Please share!

Your shares are how this site grows and I appreciate each one. Do you know someone who would enjoy this recipe? I’d love it if you would share it on Facebook or on your favorite Pinterest board!

a steak sandwich on a ciabatta bun with tomatoes and red onions.

Flank Steak Mediterranean Sandwiches

Throw together an easy meal that feeds a crowd. This Mediterranean sandwich is bursting with so many flavors! Serve up a tray at your next cookout or make this recipe for a simple meal.
5 from 1 vote
Prep Time 30 mins
Cook Time 10 mins
Total Time 40 mins
Course Sandwiches
Cuisine Mediterranean
Servings 6 servings
Calories 587 kcal

Ingredients
  

Sour Cream Dressing

  • 1/2 cup sour cream
  • 1/2 cup chopped cucumber peeled and seeded
  • 1/4 cup crumbled Feta cheese
  • 1 teaspoon oregano
  • 1/2 teaspoon steak seasoning Weber® Steak 'N Chop Seasoning
  • 1/4 teaspoon garlic powder

Steak Sandwich

  • 1-1/2 to 2 lbs. flank steak about 3/4-inch thick
  • Extra virgin olive oil as needed
  • 2 tablespoons steak seasoning
  • 1 loaf ciabatta bread cut in half lengthwise
  • 1 small red onion thinly sliced into half-moons
  • 2 medium tomatoes thinly sliced

Instructions
 

  • Combine dressing ingredients in a small bowl. Mix well and refrigerate until ready to serve.
  • Lightly brush steak on both sides with oil and then season evenly with 2 tablespoons of the steak and chop seasoning. Allow steak to stand at room temperature for 15 to 30 minutes before grilling.
  • Prepare grill for direct cooking over medium heat (350° to 450°F). Brush cooking grates clean. Grill steak over direct medium heat, with the lid closed as much as possible, until cooked to your desired doneness, 8 to 10 minutes for medium rare, turning once or twice (if flare-ups occur, move steak temporarily over indirect heat.) Remove steak from grill and let rest for 3 to 5 minutes.
  • While the steak rests, grill the bread over direct medium heat, cut side down, until lightly browned, 30 seconds to 1 minute. Thinly slice the steak. Build the sandwiches with sour cream dressing, tomatoes, steak slices and onion. Place the remaining half of the bread on top and cut into individual sandwiches. Serve right away.

Notes

  • Allow the meat to warm for 15 to 30 minutes before grilling! This helps it to cook evenly, all the way through to the center.
  • Medium rare is the ideal temperature for this cut of beef, which is around 135 degrees F. Remove the meat from the grill when an instant read thermometer reads 130 degrees F — it will continue cooking those last 5 degrees as it rests.
  • Refrigerate leftover slices of steak in an airtight container for 3 to 4 days.

Nutrition

Serving: 1gCalories: 587kcalCarbohydrates: 40gProtein: 51gFat: 23gSaturated Fat: 9gPolyunsaturated Fat: 11gCholesterol: 141mgSodium: 649mgFiber: 2gSugar: 6g
Keyword beef, flank steak, grilled steak
Tried this recipe?Let us know how it was.
sheila thigpen in her kitchen

About Sheila Thigpen

Recipe Developer, Food Photographer, Food Writer

Sheila Thigpen is the publisher of Life, Love, and Good Food — a Southern food blog — and the author of Easy Chicken Cookbook and The 5-Ingredient Fresh and Easy Cookbook. After 20+ years in the publishing industry, she retired in 2018 to focus on her own creative endeavors full time. She and her husband live near the beautiful Smoky Mountains and have a precious little granddaughter who has stolen their hearts. As an influencer, Sheila has collaborated with brands like Creamette, Kroger, HERSHEY’S, Hamilton Beach, Garafalo Pasta, OXO, Smithfield, Valley Fig Growers, and more.

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