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Grilled Garlic Herb Flank Steak with Avocado Corn Salsa is infused with amazing garlic herb flavor and grilled to tender and juicy perfection. The avocado corn salsa on top is phenomenal!

Flank Steak is an easy steak to cook and we love it in our home! Brown Sugar Garlic Flank Steak, Grilled Flank Steak with Asian-Inspired Marinade or Lemon Garlic Butter Flank Steak with Mushrooms are a few recipes to try this summer!

Grilled garlic flank steak on a skillet.

Grilled Flank Steak

Grilled flank steak is happening at least once a week at our house. The boys in our house are steak obsessed and it is usually the choice of meat for them. I love grilled flank steak because it is SO easy! And the best part is that you don’t need a complicated marinade to add amazing flavor. This marinade is simple to make with fresh herbs and garlic which infuses the steak with amazing flavor. This grilled flank steak comes out perfectly every single time!

How do you make Grilled Garlic Herb Flank Steak?

  • To start, make the marinade for the flank steak. Add olive oil, chopped garlic, fresh chopped herbs, and salt and pepper to a large plastic bag. Add the flank steak and marinate for at least an hour or overnight.
  • Heat your grill to high heat. Add the steak and grill each side for a couple of minutes to get nice char marks. Move them to indirect heat and cook the steak until desired doneness. We like medium.
  • While the steak is cooking on the grill prepare your avocado corn salsa. Add chopped avocado, corn, red onion, chopped tomato, and cilantro to a small bowl and stir to combine. Squeeze a fresh lime on top and serve over grilled flank steak.

Close up on grilled herb flank steak

Important tips for grilling flank steak:

  • Let the steak marinate for at least an hour or overnight before grilling.
  • Grill steak on high heat for 1-2 minutes to sear on each side and move to indirect heat.
  • Remove steak from the grill and rest on a cutting board for 10 minutes covered in aluminum foil
  • Slice the steak across the grain.

What temperature do you grill flank steak?

It takes about 4 minutes each side for medium rare which is 130-135 degrees on a thermometer.

Grilled flank steak on a skillet.

What sides go with steak?

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Grilled Garlic Herb Flank Steak with Avocado Corn Salsa

5 from 4 votes
Grilled Garlic Herb Flank Steak with Avocado Corn Salsa is infused with amazing garlic herb flavor and grilled to tender and juicy perfection. The avocado corn salsa on top is phenomenal!
Prep Time: 10 minutes
Cook Time: 10 minutes
Total Time: 20 minutes
Servings: 6


Avocado Corn Salsa:


  • In a large bowl or ziplock bag, add olive oil, garlic, chopped rosemary, thyme, oregano, salt and pepper. Add flank steak and marinate for 1 hour or overnight.
  • Preheat grill to high heat. Discard marinade and add flank steak to the grill. Let the steak sear on high heat for 1-2 minutes on each side and then move to indirect heat and let cook until desired doneness. Medium rare is 130-135 degrees on a thermometer. Remove steak from heat and cover with aluminum foil and let rest for 10 minutes.
  • To make the avocado corn salsa: Add avocado, tomatoes, corn, red onion, cilantro and lime juice to a medium sized bowl and mix until combined.
  • Slice the steak across the grain and top with avocado corn salsa.



Calories: 485kcalCarbohydrates: 8gProtein: 34gFat: 35gSaturated Fat: 7gCholesterol: 91mgSodium: 475mgPotassium: 933mgFiber: 5gSugar: 2gVitamin A: 355IUVitamin C: 12.1mgCalcium: 48mgIron: 2.9mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Main Course
Cuisine: American
Tried this recipe?Mention @alyssa_therecipecritic or tag #therecipecritic!




About Alyssa Rivers

Alyssa Rivers is the author of 'The Tried and True Cookbook', a professional food photographer and experienced recipe-developer. Having a passion for cooking, her tried and true recipes have been featured on Good Morning America, Today Food, Buzzfeed and more.

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Recipe Rating


  1. Mmmmmmarinating right now! I cheated a teeny bit because I made some chive blossom vinegar this summer and want to use it up. I thought the pink oniony flavour would compliment this marinade so I used 1/3 c olive oil and topped it up to 1/2 a cup with the vinegar. Just strayed a little, I promise! Looking forward to trying this tonight!! Thanks so much for the recipe!!!

    1. Of course! If you have a cast iron skillet, preheat it for a good sear. Any fry pan will cook the steak.

  2. 5 stars
    Fantastic recipe. I’m using kosher salt and freshly ground black pepper. Makes more spicy. Thanks!

  3. 5 stars
    Yummy, I prepared two separate steaks, glad I did. Delicious.
    I grilled one for dads day and grilled a second for tacos, we enjoyed so much.
    Even if your not a pro at grilling on the barbee, you will be a hit with this one. Simply follow the directions.
    I have one of those sealing machines, works wonders for marinating. I even thought of freezing one up and having it ready for those quick meals you want on hand.

  4. 5 stars
    This was so delicious and definitely a make again recipe at my house!! I paired it with your grilled Parmesan garlic potatoes recipe and everything went on the grill. Thank you!

  5. This is definitely at the top 5 of my favorite recipes to eat during the summer! It’s like fajitas, but without the Mexican flavoring. It adds a nice twist and each flavor ehances one another. Even the marinade was perfect! We left the corn out and served corn on the cob as a side dish to this decadent meal. Was soooooo good!

  6. Oh man, these photos make me drool. I guess I need to heat up the grill tonight! We love a good flank steak too!

  7. Looks amazing!! I LOVE flank steak!
    My question is… Doesn’t a marinade need an acid to properly tenderize the meat? Like vinegar? Thanks!