Grilled Flat Iron Steak Recipe with a simple sun-dried tomato sauce. I’ll show you how to grill the steak and make an easy zucchini-and-corn salad to serve with it.

Flat Iron Steak Recipe on a plate with  a zucchini, corn, and tomato salad.
chelsea

author’s note

The Affordable Steak That Tastes Restaurant Amazing!

I love grilling, but with three young kids, I usually find myself reaching for more affordable cuts of steak. With the right cooking method and a really good sauce, even a budget-friendly cut like flat iron steak can taste restaurant amazing. It also cooks quickly, which is always a win on busy summer nights. I recently used it in these steak fajitas, and it was just as delicious there!

A while back, I had a steak at a restaurant with the best sun-dried tomato sauce, and I couldn’t stop thinking about it. As soon as I tasted this grilled flat iron steak, I knew I wanted to make something similar for it. After a few rounds of testing, I landed on this simple sauce with sun-dried tomatoes, garlic, lemon, and olive oil.

signature
Raw meat arranged on a cutting board, prepared to be seasoned and grilled.

Flat Iron Steak Recipe Ingredients

IngredientHelpful Tip or Swap
Flat Iron SteakIf unavailable, use hanger steak, flank steak, or skirt steak.
Sun-Dried TomatoesUse oil-packed, herb-infused sun-dried tomatoes for added flavor.
Fresh LemonFreshly squeezed juice makes a big difference here.
Sweet CornFrozen corn works in a pinch, just char in a skillet.
ZucchiniYellow squash works just as well.
Fresh BasilFresh parsley can be substituted if needed.
ParmesanFreshly shaven is best!
    A perfectly grilled steak from this easy flat iron steak recipe, sliced and ready to serve.

    How To Cook This Flat Iron Steak Recipe

    1. Heat the grill to medium-high (400-450°F). Dry steaks, coat with oil, and sprinkle with salt and pepper, covering both sides.
    2. Grill 4-7 minutes on each side until the desired temperature is reached.
    3. Let sit for 5-10 minutes, then cut into thin slices against the grain.

    Quick Tip

    Flat iron steak, from the upper top blade roast, is ideal for grilling due to its uniform thickness and marbling, offering rich flavor. It’s more affordable than cuts like filet or rib-eye. Choose 1-pound steaks for quick, even cooking on the grill.

    A bowl of zucchini corn salad ingredients with fresh corn, zucchini, tomatoes, and herbs before mixing.

    Steak Temperatures

    Use a meat thermometer for a perfectly cooked flank iron steak recipe. It’s more accurate than checking by feel. Aim for medium-rare or your preferred doneness.

    • Rare: 120-125°F
    • Medium Rare: 135°F (4-5 min per side)
    • Medium: 140°F (5-7 min per side)
    • Medium Well: 150°F (8-10 min per side)
    • Well Done: 160-175°F
    Blending the sun-dried tomato sauce in a food processor, capturing the ingredients coming together to create a flavorful sauce for this flat iron steak recipe.

    chelsea’s recipe tip

    Quick Tips For Success

    • Rest Steaks: After grilling, rest flat iron steak recipe under foil for 5-10 minutes for juice redistribution.
    • Cut Against the Grain: Slice the steak against the grain for best tenderness.
    • Season: Don’t skimp on salt and pepper; season generously and adjust.

    Storage

    • Steak: Refrigerate this flat iron steak recipe in an airtight container for up to 3 days.
    • Sun-Dried Tomato Sauce: Store separately for up to 5 days.
    • Corn and Zucchini Salad: Best enjoyed within 2 days.

    More Delicious Grilled Dinners:

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    5 from 8 votes

    Flat Iron Steak

    Grilled Flat Iron Steak with a flavorful sun-dried tomato sauce—plus an optional zucchini-corn salad for the perfect summer meal!
    Prep Time: 25 minutes
    Cook Time: 12 minutes
    Resting Meat: 10 minutes
    Total Time: 47 minutes
    Servings: 4 servings

    Equipment

    Ingredients

    Steak
    • 2 (1 pound each) flat iron steaks
    • Olive oil
    • Salt and pepper
    Sun-Dried Tomato Sauce
    • 2 cloves garlic
    • 1/2 cup sun-dried tomatoes in oil gently packed to measure
    • 1 large lemon
    • 1/2 cup oil I use all the oil from the tomatoes container and use olive oil for the rest of the 1/2 cup
    Corn and Zucchini Salad
    • 2 ears sweet corn 14 ounces, shucked
    • 2 small zucchini 14 ounces, stems removed and halved horizontally
    • 1 large lemon
    • 1 cup cherry tomatoes halved or quartered
    • Parmesan cheese Freshly shaved
    • 3 to 4 tablespoons fresh basil

    Instructions 

    • Preheat grill to medium-high heat (400–450°F). Shuck corn. Remove stems and halve zucchinis lengthwise. Halve or quarter cherry tomatoes, depending on their size. Halve both lemons; juice 1 of the lemons to get 1/4 cup juice and set the other 2 lemon halves aside to grill. Rub or brush (with a pastry brush) corn and zucchini with olive oil. Season liberally with salt and pepper (I add about 1 to 1/2 tablespoons oil and about 1/2 teaspoon salt and pepper).

    Corn and Zucchini Salad

    • Prepare the preheated grill by cleaning with a grill brush. Generously oil the grill (I drench a rolled-up paper towel in vegetable oil and, holding it with tongs, rub it over the grill grates). Add corn and zucchini. Cook zucchini about 2–3 minutes; flip and cook another 2–3 minutes or until lightly charred and crisp-tender. Cook the corn, rotating about every 2–3 minutes (a total of 4 rotations) until charred, bright yellow, and crisp-tender, about 10–12 minutes total. Grill lemon halves flesh side down for 2–3 minutes or until charred.
    • Transfer vegetables to a cutting board to cool slightly. Slice corn off the cob and add to a large bowl. Cut zucchini into thin half moons and add to the bowl with the corn. Add in the cherry tomatoes, Parmesan (to taste), and fresh basil (rip or cut into ribbons). Add the juice from half the grilled lemon (about 2 tablespoons) and some additional olive oil (about 1–2 tablespoons). Toss and taste; adjust seasonings by adding any additional salt, pepper, or oil.

    Steak

    • While vegetables and lemon are grilling, pat steaks dry with paper towel and rub with olive oil (about 1/2 tablespoon per steak). Season both sides generously with salt and pepper (I add about 1/2 teaspoon salt per steak). Add steaks to the fully heated grill and cook until charred and medium rare (or to temperature preference, medium rare highly recommend) about 4–5 minutes per side. Use a food thermometer for precision (see temperatures in post above). Transfer steaks to a plate to rest for about 5–10 minutes, tented with foil. Transfer to a cutting board and cut across the grain as thinly as possible (this makes sure the meat is tender!).

    Sun-Dried Tomato Sauce

    • While steaks grill, finely mince garlic and coarsely chop the sundried tomatoes. Add garlic and tomatoes to a small blender or food processor. Add in the 1/4 cup lemon juice and salt and pepper (I add about 1/2 teaspoon salt and 1/4 teaspoon pepper) and pulse until ingredients are chopped. Slowly drizzle in the oil (I use all the oil from the sundried tomatoes container and fill up the rest of the 1/2 cup with regular oil) and pulse until emulsified and a chunky sauce has formed. Taste and adjust seasoning.
    • Add thinly sliced steak to plates (1/2 steak per plate). Divide the corn and zucchini salad among the plates. Spoon the sauce evenly on the steaks. Garnish the dish with additional Parmesan. Cut the remaining half of the grilled lemon into wedges and add 1 wedge to each plate. Squeeze lemon over and enjoy!
    Final step! Please let us know how it was by leaving a review.

    Recipe Notes

    Storage: Store leftover steak in an airtight container in the fridge for up to 3 days. Keep the sun-dried tomato sauce separate in another container. For the zucchini-corn salad, store it in an airtight container and eat within 1-2 days for the best texture. Reheat the steak gently in a skillet or enjoy cold in salads or wraps!

    Nutrition

    Serving: 1serving | Calories: 299kcal | Carbohydrates: 9g | Protein: 2g | Fat: 30g | Saturated Fat: 2g | Cholesterol: 1mg | Sodium: 42mg | Potassium: 349mg | Fiber: 2g | Sugar: 2g | Vitamin A: 438IU | Vitamin C: 43mg | Calcium: 23mg | Iron: 1mg

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

     

    Meet Chelsea


    Hello, and welcome to Chelseaโ€™s Messy Apron! Iโ€™m Chelsea, the recipe developer, food photographer, and writer behind the site. Iโ€™m passionate about creating simple, reliable, and delicious recipes that anyone can make.

    Thanks for stopping byโ€”I hope you find something delicious to make!

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    5 from 8 votes

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    16 Comments

    1. Lynda says:

      Can I make the sauce ahead of time, or even the corn and zucchini for that matter adding the cold ingredients just before serving?

      1. Chelsea says:

        You can definitely make the sauce ahead of time and the corn and zucchini is fine ahead of time we just usually make it all together because we cook them on the grill when were grilling the steak!

    2. V says:

      5 stars
      This was a fabulous meal. Thank you so much for sharing it!

      1. Chelsea Lords says:

        Thank you so much V!

    3. Valerie says:

      5 stars
      Definately a keeper and the epitome of summer. Will make again. Loved the sauce!

      p.s. your name is not on the print sheet. I like to save and write down my “will do again” recipes. But I found it!

      1. Chelsea Lords says:

        So glad to hear you enjoyed this!! Thanks for the comment and review Valerie ๐Ÿ™‚

    4. Mateo Pedersen says:

      5 stars
      This was so good! My mistake was that I did not make enough! I canโ€™t wait to make this again on fatherโ€™s day to surprise my father-in-law.

    5. Becky Hardin says:

      5 stars
      Such a perfect dinner! That steak and veggies look amazing. I’m drooling. YUM

      1. Chelsea Lords says:

        Thank you! ๐Ÿ™‚

    6. April says:

      5 stars
      That is a beautiful plate of food! I can’t resist a good steak, I know what I’ll be making this weekend. ๐Ÿ˜‰

    7. Katie says:

      5 stars
      So tender and juicy! We all loved it.

    8. Amy says:

      5 stars
      Tried it and loved it!

      1. Olivia Mendenhall says:

        YAYYY!! ๐Ÿ™‚

    9. Sara Welch says:

      5 stars
      What a robust recipe; my whole family loved it! Saving this to make again sometime this week!

      1. Olivia Mendenhall says:

        I’m sooo happy you enjoyed this. Thanks so much! ๐Ÿ™‚

      2. Mugsy says:

        Just curious on the steak cut. It sounds like it’s a thin cut shoulder blade roast?