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    Home Β» Entrees Β» Flank Steak Quesadillas with Gorgonzola

    Mar 13, 2019 Β· Modified: Nov 4, 2021 by Sues Β· This post may contain affiliate links, uses cookies, and generates income via ads Β· View privacy policy + disclosure statement linked in footer Β· 24 Comments

    Flank Steak Quesadillas with Gorgonzola

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    These Flank Steak Quesadillas with Gorgonzola are a major upgrade to quesadillas and incredibly easy to make for a simple weeknight dinner. They're packed with flavor and easy to make substitutions based on your preferences.

    Head-on view of flank steak quesadillas with gorgonzola stacked on each other with bowl of mashed avocado and beer can in the background and recipe title at top

    (This recipe for Flank Steak Gorgonzola Quesadillas was originally published in January 2013, but has been updated with new photos and content in 2019).

    Call me crazy, but I've never been much of a steak person. For whatever reason, it has never really excited me and I'd much rather have fish and all those delicious sides when I go to a steakhouse. Until recently.

    I don't know what happened, but suddenly I'm falling in love with red meat. I know craving it is often a sign of iron deficiency, but I definitely don't have one and I wouldn't exactly say I'm craving it... It's just that every time I've had it recently, I've been so obsessed.

    I think it started around Christmas when my mom made beef tenderloin and it continued to Valentine's Day when I made filet mignon at home. I marinated some NY strip steak last night and topped a salad with it and omg I was in heaven.

    What is going on with me?? It must just be that I've been having some really good cuts of beef lately and it's made me realize how grand it can be.

    Flank steak isn't often thought of as an amazing cut of beef (it's probably not going to blow your mind like a tenderloin will), but it's pretty inexpensive and really delicious in dishes like fajitas and quesadillas.

    It's also easy to cook and I believe there are three keys to making the perfect flank steak:

    Tips for Preparing the Perfect Flank Steak

    1. Marinate it
    2. Don't overcook it
    3. Slice it against the grain

    Seriously, if you follow those 3 easy tips, you'll have delicious flank steak every time you make it!

    Why You'll Love This Recipe

    Quesadillas are highly underrated as an easy make-at-home meal. There's so much you can do with them and they're almost always delicious!

    While I cook Mexican food at home quite a bit, I rarely ever make quesadillas. But after making these flank steak quesadillas again (the first time was in 2013), that will definitely be changing. They're so easy and versatile and always delicious.

    These quesadilla combine a tender and tasty marinated flank steak with robust gorgonzola cheese, peppers, and onions.

    And don't worry, if you or someone in your family doesn't like gorgonzola cheese, you can easily replace it with a cheddar, Monterey Jack, or the cheese of your choice.

    Ingredients

    Here's everything you need to make these steak quesadillas:

    • Lime juice
    • Olive oil
    • Garlic
    • Chili powder
    • Cumin
    • Salt
    • Flank steak
    • Onion
    • Salt
    • Pepper
    • Jalapeño pepper
    • Flour tortillas
    • Gorgonzola cheese
    • Avocado, for topping

    How to Marinate Flank Steak

    Like I mentioned, the first thing you'll need to do is marinate your flank steak. Make sure you plan ahead of time as your meat will need at least 3 hours in the marinade. You can also prep this the night before and let it sit in the marinade for longer (up to 24 hours).

    The flank steak marinade consists of simply lime juice, minced garlic, chili powder, cumin, salt, and olive oil. Add everything to a big Ziplock bag and make sure the marinade is evenly distributed.

    Keep in fridge.

    Overhead view of steak marinating in large ziplock bag

    How to Make Flank Steak Quesadillas

    Now that your steak is marinated, it's time to cook it!

    Cooking flank steak is easy, but make sure you are paying attention and don't overcook it (remember tip #2!).

    Cook it in a grill pan or cast iron pan over high heat for about 3 minutes on each side (I do 1.5 minutes, rotate steak, and do another 1.5 minutes before flipping to get the pretty grill marks).

    Overhead view of flank steak being cooked in grill pan

    My steak was a nice medium rare (maybe a little bit more on the rare side), which is exactly how I like it.

    When it comes to flank steak, a well-done steak means a tough steak, so try to avoid going past medium rare.

    Also, make sure you slice your flank streak against the grain! If you slice it with the grain, it will be much tougher.

    This is my absolute ideal done-ness of steak.

    Flank steak sliced against the grain on a cutting board

    And don't forget the rest of your flank steak quesadilla fillings... Like the onions and jalapeño peppers!

    Sauté the onions over medium-low heat with salt and pepper  for about 5 minutes. And then add the sliced jalapeños in and sauté for another 8 minutes or so, until the onions are getting nice and browned.

    Onions and sliced jalapeño peppers cooking in pan

    Clean the grill pan, lightly brush tortillas with olive oil, and place in pan over medium heat.

    Sprinkle gorgonzola cheese on the tortilla, top with a few slices of steak, onions and jalapeño, and a little bit more cheese.

    Top with another tortilla and cook for a minute. Flip and cook for another 2 minutes before removing from pan to a separate plate.

    Quesadillas being grilled in pan

    Continue with the rest of the tortillas and fillings. Rotate the tortillas if you want those criss-cross grill marks!

    Overhead of flour tortillas with criss-cross grilled marks

    You can either slice your avocado or mash it up a little bit. Or leave it out all together. But I love mashing it up and dipping my sliced steak quesadillas into it.

    Which, by the way, I easily slice with a pizza cutter. You could also use a sharp knife.

    Straight-on view of sliced flank steak quesadillas stacked on top of each other with onions, jalapeño peppers, and gorgonzola cheese with bowl of mashed avocado and beer can in the background

    And my steak obsession continues. These flank steak gorgonzola quesadillas are a majorly upgraded quesadilla... Especially if we're talking about the ones I used to make in the microwave as an after school snack in middle school (which were also quite delicious, but consisted of simply cheddar cheese and some salsa).

    Though who knows where I'd be be if I came home from school and whipped up flank steak quesadillas with gorgonzola cheese when I was 12.

    We'll never know.

    Landscape head-on view of sliced flank steak and gorgonzola quesadillas with onions and jalapeño peppers on a white plate with bowl of mashed avocado and can of beer in background

    I'm just happy I made it here now. Because it's a marvelous place to be.

    My steak is definitely a bit on the rare side, but it was perfectly tender and flavorful and everything many people think flank steak isn't.

    All of the flavors in these steak quesadillas just go together so well. If you think you don't like gorgonzola cheese, try it in a quesadilla with flank steak and I think you might change your mind.

    Potential Substitutions

    That said, I know not everyone loves gorgonzola and may not like or have access to some of the other ingredients in these quesadillas. Here are some potential substitutions and modifications you can easily make:

    • If you don't like gorgonzola cheese, feel free to use cheddar, Monterey Jack, or the cheese of your choice.
    • If you can't find flank steak, you can use skirt steak.
    • If you don't like or can't eat flour tortillas, you can substitute with corn tortillas.
    • If you don't like caramelized onions, you can omit.
    • If you don't like jalapeños, you can omit or substitute with green bell peppers.

    Let me know if you make any other substitutions with this recipe!

    More Easy Steak Recipes

    If you're going through a moment with steak, too, check out my other easy recipes with steak. They're all so good!

    • Steak and Shrimp Scampi
    • Flank Steak Sandwiches
    • Steak and Cheese Croissants
    • Chipotle Steak and Peach Kabobs
    • Steak and Strawberry Salad
    • Beef, Asparagus, and Carrot Rolls
    • Steak and Cheese Fried Rice
    • Flank Steak Tacos with Strawberry Mint Salsa
    • Sous Vide Steak (from Salt Pepper Skillet)
    Head-on view of flank steak quesadillas with gorgonzola stacked on each other with bowl of mashed avocado and beer can in the background

    These quesadillas also made me kind of crave summer when we can actually cook the steak on the grill. And then go sit in the sun. And just be amazingly happy and warm.

    Did I mention these quesadillas go fabulously with a nice cold beer?? Or a raspberry rosé gose (which is what I enjoyed them with)??

    OK, but they're also perfect in the winter when it's chilly and you need a little bit of comfort food. The best kind of "year round" food.

    Also note that flank steak is really good for freezing so you might want to get on that so you can make these flank steak quesadillas any time you have a craving. Which will probably be ALL THE TIME.

    Now I need to figure out where I'm going to get my next steak fix!

    What's your idea of the ultimate quesadilla?

    Head-on view of flank steak quesadillas with gorgonzola stacked on each other

    Flank Steak Quesadillas with Gorgonzola

    These Flank Steak Quesadillas with Gorgonzola are a major upgrade to quesadillas and incredibly easy to make for a simple weeknight dinner. They're packed with flavor and easy to make substitutions based on your preferences.
    No ratings yet
    Print Pin Rate
    Course: Entree
    Cuisine: American
    Keyword: Fancy Quesadillas, Flank Steak Recipes, Steak Quesadillas, Steak Recipes
    Prep Time: 15 minutes
    Cook Time: 15 minutes
    Marinade Time: 3 hours
    Total Time: 3 hours 30 minutes
    Makes: 4 servings
    Author: Sues

    Ingredients

    • ΒΌ cup freshly-squeezed lime juice,
    • 4 Tbsp olive oil, divided
    • 3 cloves garlic, minced
    • 1 Tbsp chili powder
    • 1 tsp cumin
    • ΒΎ tsp salt, divided
    • 1 lb. flank steak
    • 1 large onion, sliced
    • ΒΌ tsp salt
    • ΒΌ tsp pepper
    • 1 jalapeΓ±o pepper, thinly sliced
    • 8 flour tortillas
    • 4 oz. gorgonzola cheese, crumbled
    • 1 avocado, peeled, pitted, and sliced (optional, for serving)

    Instructions

    • Add lime juice, 2 Tbsp olive oil, minced garlic, chili powder, cumin, and Β½ tsp salt to a large ziplock bag and place flank steak in the bag. Make sure marinade is distributed evenly and place in fridge for at least 2 hours to marinate.
    • Heat grill pan or large cast iron pan until extremely hot and placed flank steak on it. Grill for 3 minutes on each side. If you want criss-cross grill marks, be sure to rotate steak after 1.5 minutes on each side.
    • Remove steak to cutting board and let cool slightly. Slice flank steak in strips, being sure to cut against the grain.
    • While steak is cooling, heat pan to medium and add 1 Tbsp olive oil. Add onions, remaining ΒΌ salt, and ΒΌ tsp pepper and cook for about 5 minutes. Add sliced jalapeΓ±o and cook for another 6-8 minutes, until onions are browning. 
    • Wipe out pan. Lightly brush one side of all tortillas with remaining olive oil and place one oil-side down on pan over medium heat. Sprinkle gorgonzola cheese over the top, top with steak, onions and jalapeΓ±o, and a little more cheese.
    • Place another tortilla over the top, cook for about one minute, and then flip and cook for another two minutes. Be sure to rotate tortillas halfway through cooking if you want criss-cross grill marks. Continue with remaining tortillas and filling. 
    • Using a pizza cutter, slice quesadillas into four and serve with mashed or sliced avocado.

    Notes

    • You can cook steak on the grill if you prefer.
    Share a Photo of Your Finished Recipe!Mention @wearenotmartha and share a photo if you've made the recipe!

    View Web Story for this recipe.

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    Reader Interactions

    Comments

    1. leslie says

      January 28, 2013 at 9:10 am

      Oh how fun!!! I am not sure I would have been able to do it.
      Love your quesadilla. My fav? Can I say them all???? πŸ™‚

    2. sarah k @ the pajama chef says

      January 28, 2013 at 10:49 am

      i saw your pics of the plane trip on instagram & was so jealous, as i spent the day driving. boo. these quesadillas sound fancy & fabulous!

    3. Erica @ In and Around Town says

      January 28, 2013 at 11:59 am

      I love anything that has steak and Gorgonzola...two flavors and textures that can go anywhere together πŸ™‚

    4. Bianca @ Confessions of a Chocoholic says

      January 28, 2013 at 12:05 pm

      You can't go wrong with steak and gorgonzola!

    5. Chris says

      January 28, 2013 at 12:45 pm

      Love these quesadillas! Really hit the spot after a long work week. As far as catching the flight bug.. I definitely did. I can not wait to take my intro flight next weekend (if the weather plays nice). I have a feeling this won't be your last flight πŸ˜€

      Such a great weekend filled with both excitement and great food. Great job Sues!

    6. Lexi says

      January 28, 2013 at 12:52 pm

      these sound SO good! I will need to try these soon!

    7. Libby says

      January 28, 2013 at 2:44 pm

      I didn't know there would be post-flight snacks! These look awesome!

    8. Ashley says

      January 28, 2013 at 3:16 pm

      These look so delicious! Definitely a huge step up from the quesadillas I made as a youngster. And your indoor grilling skills are enviable, especially those beautiful grill marks! Now I'm hungry...

    9. Gia Grossman says

      January 28, 2013 at 3:33 pm

      This dinner looks pretty sweet. All my favorite things!!

    10. Michelle Collins says

      January 28, 2013 at 5:03 pm

      Quesadillas are my go-to dinner at least once a week. I love how versatile they are, and usually use black beans, vegetables, cheese, and avocado in mine.

    11. Megan says

      January 28, 2013 at 6:21 pm

      These quesadillas look great. I make them all the time. My ideal quesadilla is a summer one with lots of avocado, ripe tomato, corn right off the cob, maybe some arugula, and definitely cheese. Oh, and bacon!

    12. Eva | Adventures in Cooking says

      January 28, 2013 at 7:47 pm

      I looooove the combination of beef and gorgonzola. It's one of my favorites for savory dishes.

    13. Odetta says

      January 28, 2013 at 7:47 pm

      Love this post! Everything about it!!

    14. Claudia says

      January 28, 2013 at 10:33 pm

      My favorite quesadilla is any one I am currently looking at. I just love them. Steak+ gorgonzola = heaven. At all times.

    15. Lauren @ Sassy Molassy says

      January 29, 2013 at 1:37 am

      YUM! These sound a-amazing! Now pair that with a margarita and you're golden. πŸ™‚

    16. Joanne says

      January 29, 2013 at 8:22 am

      I somehow never think to make quesadillas and I'm not sure why. These are so fun!

    17. Shannon says

      January 29, 2013 at 11:33 am

      how cool is that! i would've been scared too πŸ˜‰ these quesadillas look fabulous, should remember them when i'm wondering what to make for the big game!

    18. Erica says

      January 29, 2013 at 9:17 pm

      Love quesadillas and this one looks and sounds delicious! Great combination of flavors.

    19. Jenn says

      January 29, 2013 at 9:58 pm

      I must tell you.. I did not realize until today that my ideal quesadillas is one that you make for me... especially if it's this one!! lol Look fantastic!!

    20. Culinary Cory says

      January 29, 2013 at 10:49 pm

      All I can say is yum. Super yum!

    21. Kitchen Belleicious says

      January 29, 2013 at 10:51 pm

      these look sooo good

    22. Rachel says

      January 30, 2013 at 6:45 pm

      The quesadillas look amazing! What could be bad about flank steak and gorgonzola...

    23. Kelsey says

      April 04, 2019 at 9:10 pm

      Hi! Not sure what I did wrong when cooking these....I smoked out my entire apartment in less than 30 seconds! The whole one side of the steak was burnt to a crisp in that same time frame. I place the cast iron skillet on the stove, turn it to high heat for a few minutes and then placed the steak in the pan. And Whoof! The smoke just started billowing out and wouldn't stop. I resorted to cooking the steak in the oven. What did I do wrong???

    24. Sues says

      April 04, 2019 at 9:49 pm

      @Kelsey- Oh no! Pan searing steak over high heat will definitely generate some smoke (I always turn the fan above my oven on), but it shouldn't be THAT bad. Were you using a grill pan or cast iron pan? Heavy pans like those are definitely best for searing over high heat. You can also try using a different oil- I'm fine using olive oil (just make sure it's not extra virgin!), but peanut oil, grape seed oil, and avocado oil all have higher smoke points, so may work better. Lastly, you may just need to turn down the heat a tad and experiment with what works best for searing on your stovetop (all stoves act a little bit different). I'm sorry that happened and I hope that helps!!

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