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Grilled Steak with Avocado Sauce

Grilled Steak with Avocado Sauce is a flavor explosion! The steak is seasoned and then grilled to perfection and served along side a creamy avocado sauce. Great on it’s own or served in tacos! 

Around here we are all about the taco Tuesday, usually. But every once in a while I like to mix things up by serving something a little different but that still has the Mexican flare that my family has come to look forward to every Tuesday. 

That is where this Grilled Steak with Creamy Avocado Sauce comes into play. The steak is seasoned with cumin, chili powder, onion and garlic and then grilled to perfection. And while the steak is fantastic on it’s own, we need to talk about this avocado sauce. 

Think part guacamole, part creamy sauce. I was spreading it all over the steak, dunking my chips in it and even eating it with a spoon. It’s that good guys. But it’s not just me saying it! There are reviews from fellow readers too :) 

Andrea says: Fantastic! Followed the recipe to the tee and it was delicious. Big hit with my husband and now on our meal rotation. It was recommended to me by my brother who lives in Taiwan. Kudos to the chef!

So let’s talk about what you’ll need to get this easy dinner on your table. 

What ingredients do you need: 

There are two components to this dish: the steak and the avocado sauce so I’ve separated this into 2 sections. 

To make the steak you’ll need: 

  • Flat Iron Steak: If someone asked me what my favorite cut of steak was, I’d have to say flat iron. Not ribeye (although delicious), NY strip, or even Filet Mignon. Flat Iron Steak is my absolute favorite cut. It is from the top blade of the beef and is extremely tender. It is great for grilling and can be used in so many different recipes. I also like that the price point tends to be lower than the pricier cuts. Check out the Beef It’s What’s For Dinner article for more info on Flat Iron Steaks .
  • Granulated Garlic/Onion Powder/Cumin/Chili Powder/Salt: These ingredients are what is going to give your steak that latin flavor. You can substitute garlic powder for the granulated garlic. If you substitute garlic salt, I’d omit the additional salt. 
Overhead photo of ingredients needed to make steak with avocado sauce.

To make the Avocado Sauce: 

  • Avocado: Obviously. 
  • Cilantro: I know some don’t like cilantro but I think it works really well in this sauce. 
  • Garlic: 1-2 small cloves is all you need, you don’t want to overpower the sauce. 
  • Red Wine Vinegar: This adds acidity which helps lighten the creaminess of the sauce. 
  • Olive Oil: Helps make the sauce really smooth. 
  • Salt: To help bring out the flavors of the other ingredients. 
  • Lime: More acidity to really brighten the sauce. 
Avocado sauce ingredients.

Step by Step Photos and Instructions: 

This steak recipe is actually incredibly easy to make which makes it perfect for weeknight meals, or nights when you want to get something on the table without sacrificing any deliciousness. 

STEP #1: Combine all of the seasonings for the steak together in a bowl. And rub them all over the steak. Making sure to season both sides. 

STEP #2: Preheat your grill to medium heat. 

STEP #3: Place all of the ingredients to make the sauce into a food processor (or blender) and process until smooth. Cover and refrigerate until you’re ready to use. 

STEP #4: Cook steak on the preheated grill. Depending on the thickness of your steak this should take 5 – 7 minutes per side for medium rare. Remove steak from grill and allow to rest for 10 minutes.

DES’ TIP: Please don’t skip the resting part! When steak has a chance to rest, the juices redistribute and result in a much more tender bite. This goes for any steak, not just this one! 

STEP #5: Slice steak against the grain and serve with the sauce. 

As you can see the sauce is pretty thick. I like to serve it with a bowl and a spoon along side so people can chose to dip their steak or spoon it over the top. But either way, if the indication from the way my family gobbled this down means anything, your family is going to love this too. 

You can serve this steak on it’s own with the sauce as a main dish. Or you can slice it and serve it with the sauce in tacos, on top of nachos or even on top of a burrito bowl. You’ll love it! 

Note: This recipe was originally posted in 2010. It was updated with new photos, step by step instructions and nutrition information in 2022. 

If you want even more sauce options for the next time you make steak, here are some of my favorite sauce recipes: 

Horseradish Sauce

Easy Garlic Aioli

Chimichurri Sauce Recipe

Peppercorn Sauce

Want more Flat Iron Steak Recipes? I’ve got you covered!

Grilled Rosemary Balsamic Flat Iron Steak

Flat Iron Steak with Dijon Caper Sauce

Oregano and Garlic Flat Iron Steak

Broiled Flat Iron Steak with Herb Roasted Mushrooms

Grilled Flat Iron Steak with Tomato Salad

Grilled Steak with Avocado Sauce

Perfectly seasoned tender steak AND creamy avocado sauce? Oh yeah its heavenly.
4.7 from 13 votes
Prep Time 15 mins
Cook Time 10 mins
Resting Time 10 mins
Total Time 35 mins
Course Main Dishes
Cuisine American
Servings 4 Servings
Calories 503 kcal



  • 1 1/2 teaspoon garlic powder
  • 1 1/2 teaspoon ground cumin
  • 3/4 teaspoon kosher salt
  • 1/2 teaspoon chili powder
  • 1/2 teaspoon onion powder
  • 1 3/4 pounds flat iron steak
  • 1 avocado skin and pit removed, diced
  • 1/3 cup chopped cilantro
  • 2 cloves garlic
  • 1 tablespoon red wine vinegar
  • 2 tablespoons olive oil
  • 1/2 teaspoon kosher salt
  • juice from 1 lime


  • Combine first 5 ingredients in a bowl. Rub all over the steak.
  • Preheat grill to medium heat.
  • Place remaining ingredients in a food processor and process until smooth. Place in the refrigerator until ready to use.
  • Cook steak about 5 minutes per side for medium rare. Transfer to a plate and allow to rest for 10 minutes.
  • Slice steak and spoon avocado sauce over the top. Serve.


Be sure to let the steak rest after cooking. This will allow the juices to redistribute. If you don't let it rest, the juices will run out as you cook and the steak will be less tender. 
You can make the sauce ahead of time. Just keep it covered in the refrigerator. 
Nutrition information for estimation purposes only. 


Calories: 503kcalCarbohydrates: 6gProtein: 39gFat: 35gSaturated Fat: 10gPolyunsaturated Fat: 3gMonounsaturated Fat: 18gTrans Fat: 1gCholesterol: 131mgSodium: 885mgPotassium: 906mgFiber: 4gSugar: 1gVitamin A: 247IUVitamin C: 6mgCalcium: 32mgIron: 6mg
Tried this recipe?Mention @lifesambrosia or tag #lifesambrosia!
Keywords: avocado, bbq, Labor day recipes, Memorial Day recipes, steak, summer

Leave a Comment

Recipe Rating

  • Reply
    October 17, 2023 at 5:57 pm

    5 stars
    Made this to tonight with multicolored -lemon quinoa. I wouldn’t change a thing!! Unless I wanted it spicy of course! Great recipe…great job !

    • Reply
      October 17, 2023 at 9:39 pm

      I’m so happy to hear that, Kate! Thank you!! And that quinoa sounds like it’d be so good too!!

  • Reply
    Johnny Lee White
    May 17, 2021 at 11:37 am

    5 stars
    This very simple recipe was slightly outstanding I loved it. The first time I’ve ever used guacamole over grilled steak before can’t wait to make it again thanks a lot

  • Reply
    Bob O’links
    May 14, 2021 at 5:47 pm

    1 star
    I’m sorry, I’m not usually like this, but I hated this recipe. Start with guacamole, replace diced tomatoes and pepper with too much vinegar, use to ruin a steak.

    • Reply
      May 14, 2021 at 6:58 pm

      Sorry you didn’t enjoy it, Bob! Thanks for the feedback.

  • Reply
    John Sain
    April 30, 2021 at 12:59 pm

    5 stars
    Where’s the avocado?

    • Reply
      April 30, 2021 at 2:40 pm

      Hi John! It’s in the sauce! After you rub the steak with the seasonings, combine the other ingredients (including the avocado) in a food processor :)

  • Reply
    Andrea Ferrett
    September 26, 2020 at 7:02 pm

    5 stars
    Fantastic! Followed the recipe to the tee and it was delicious. Big hit with my husband and now on our meal rotation. It was recommended to me by my brother who lives in Taiwan. Kudos to the chef!

  • Reply
    Jasmine-Marie Hale
    June 22, 2020 at 1:09 pm

    5 stars
    O my gosh this stuff is AMAZING!!! I love it so much!! Definitely recommend for those avocado lovers out there!!

    • Reply
      June 24, 2020 at 6:36 pm

      So happy to hear that you enjoyed it, Jasmine-Marie!!

  • Reply
    February 11, 2020 at 6:40 pm

    5 stars
    The avocado sauce stole the show. I cooked a couple new york strips in a cast iron instead of grilling. Standard butter, garlic, and rosemary cooked to a medium rare. The creamy avocado sauce was refreshing, and substituting parsley was a great idea. My wife was extremely impressed overall. I will definitely be using the sauce again on other meats.

    • Reply
      February 12, 2020 at 8:50 am

      Happy to hear that Daniel! Thank you for sharing!

  • Reply
    October 27, 2019 at 8:33 pm

    5 stars
    You could use Italian parsley instead so you still get the bright green color without the cilantro taste!

  • Reply
    October 27, 2019 at 7:22 pm

    5 stars
    Hi. I don’t like cilantro. Anything else I can use in place of it? Thanks!

  • Reply
    March 11, 2019 at 4:54 pm

    5 stars
    So good!!!
    I didn’t have any coriander so I replaced it with basil, served it with sweet potatoes, brussel sprouts and lime rice. It was awesome!! The avocado sauce and the steak flavour was perfect! So glad I made enough for a repeat tomorrow night!

  • Reply
    October 23, 2018 at 7:32 pm

    5 stars
    I made this tonight, but don’t have a food processor so left the avocado in chunks and chopped the cilantro finely. Simply AMAZING! Put it on a NY strip steak and have to say this is going in my book of favorites!

    • Reply
      October 23, 2018 at 9:06 pm

      Pismomama- That is awesome to hear!! I love that it’s just as delicious with chunked avocado too :)

  • Reply
    July 22, 2018 at 3:44 pm

    I made this for my wife and I tonight, and it was amazing!

  • Reply
    May 24, 2018 at 10:20 pm

    5 stars
    I think this is a fabulous recipe that you could use as a base for many dishes.

    It’s great as it is however, with the addition of jalapeño or other hot pepper choices you could have a southwest theme.

    Thanks for the recipe!
    Your blog is very nice. 🥩🥩🥑🌶🥂

    • Reply
      May 25, 2018 at 11:04 pm

      I am so happy to hear that Kimberly! Thank you!

  • Reply
    Peter @ Feed Your Soul Too
    August 23, 2013 at 5:40 pm

    Your Labor Day offerings were awesome. So I was so glad to share your recipes and promote your site. Thx from Feed Your Soul Too –

  • Reply
    May 15, 2013 at 1:21 pm

    This looks and sounds DELICIOUS. Yum, yum, yum!

  • Reply
    The Food Hound
    May 14, 2013 at 1:28 pm

    OK, just made it and blogged about it on the Food Hound!! So fabulous!

  • Reply
    The Food Hound
    May 6, 2013 at 10:57 am

    A friend just sent me this link because she made this and LOVED IT! Glad I checked out your blog, and this is totally on my list of things to make!!

  • Reply
    February 16, 2012 at 8:53 am

    We just tried this last night (found it via Pinterest), and it was fantastic :) Can’t wait to follow your blog now- Thank you for sharing!!

  • Reply
    September 6, 2010 at 4:23 pm

    YUM!!! I made this, and both my husband and I were so glad I did!

  • Reply
    August 11, 2010 at 8:16 pm

    Des I made this tonight and it was delicious! Thanks for the recipe!

  • Reply
    July 26, 2010 at 1:23 pm

    The avocado sauce looks amazing! I can’t wait to try it on steak tacos this week!!

  • Reply
    July 21, 2010 at 3:28 am

    I’m not very adept at cooking steak at home, but I absolutely love the sound of the avocado sauce. Mmmmmm.

  • Reply
    Jenn's Food Journey
    July 20, 2010 at 5:20 am

    The sauce looks so good Des, I think you could put that one just about anything!

  • Reply
    July 19, 2010 at 8:39 am

    That sauce looks incredible! I can’t wait to try it!

  • Reply
    July 19, 2010 at 7:55 am

    Ha, ha. My pictures aren’t very good because, once the food is cooked, I just want to get to the table. I am a huge fan of flatiron steak. Nice dish!

  • Des

    Hey! I'm Des!

    Welcome to Life’s Ambrosia where Dinner is served and memories are made. Here you will find over 1000 tried and true recipes for every possible occasion. In the last 10 years, this blog has helped millions of families put dinner on the table and create food memories. Let me help you too.

    Read more »

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