Juicy flank steak marinated in balsamic vinegar, garlic, and Dijon mustard gets grilled to a perfect medium-rare, then sliced thin and layered over a vibrant bed of mixed greens. Sweet charred corn kernels, halved cherry tomatoes, thin red onion, and creamy avocado bring brightness and texture, while crumbled Gorgonzola adds a rich, salty bite. Everything is tied together with a simple balsamic-honey vinaigrette. Ready in just 35 minutes, this salad works as a hearty main course that feels light yet completely satisfying.
There was a July evening when my neighbor brought over an armful of fresh corn from his garden and I had a flank steak thawing on the counter with no plan at all. I threw together whatever was in the fridge and wound up making something that silenced the whole backyard.
I made this for a small dinner party once and watched my friend who claims to hate blue cheese go back for thirds without saying a word. She just kept eating and eventually admitted she had been wrong for thirty years.
Ingredients
- Flank steak: This cut is affordable and takes marinade beautifully, just make sure you slice it thin and against the grain or it will chew like rubber
- Balsamic vinegar: Use a decent quality bottle here since it is the backbone of both the marinade and the dressing, thin grocery store stuff will taste flat
- Dijon mustard: This is what makes the vinaigrette actually emulsify instead of separating into an oily puddle on your plate
- Fresh corn: Frozen kernels will not give you that smoky charred flavor, do not skip the grilling step even if it feels like extra work
- Gorgonzola cheese: Crumble it yourself from a block if you can, pre crumbled packages are often too dry and dusty tasting
- Mixed greens: Arugula adds a peppery bite that balances the richness, but a spring mix works fine if you prefer something milder
- Cherry tomatoes: Halving them lets their juices mingle with the dressing instead of rolling around whole like little marbles
- Red onion: Soak the thin slices in cold water for five minutes if raw onion bite is too aggressive for your group
- Avocado: Add this last and right before serving because it browns quickly once cut and tossed
- Honey or maple syrup: Just a teaspoon rounds out the acidity of the balsamic so the dressing does not pucker your mouth
Instructions
- Marinate the steak:
- Whisk together the balsamic vinegar, olive oil, minced garlic, Dijon mustard, salt, and pepper in a small bowl. Place the flank steak in a zip top bag, pour the marinade over, seal it, and let it sit in the fridge for at least twenty minutes but ideally a couple of hours.
- Grill the corn:
- Brush husked corn ears with olive oil and lay them on a hot grill or grill pan set to medium high. Turn them every few minutes for eight to ten minutes until you see nice charred spots on all sides, then let them cool before slicing the kernels off the cob.
- Cook the steak:
- Pull the steak from the marinade and grill it over high heat for about three to four minutes per side for medium rare. Rest it on a cutting board for five full minutes before slicing thinly across the grain, which is the single most important step for tenderness.
- Build the salad base:
- In a large wide bowl, layer the mixed greens, grilled corn kernels, halved cherry tomatoes, thinly sliced red onion, and crumbled Gorgonzola. Hold the avocado back for now so it does not get bruised during tossing.
- Whisk the vinaigrette:
- Combine balsamic vinegar, extra virgin olive oil, honey, Dijon mustard, salt, and pepper in a bowl and whisk aggressively until the mixture thickens and holds together.
- Assemble and serve:
- Drizzle the vinaigrette over the salad, gently toss, then arrange the sliced steak and avocado on top. Bring it to the table immediately while the steak is still warm.
This salad turned a regular Tuesday into one of those meals my husband still talks about months later, the kind where nobody checks their phone once.
Choosing the Right Steak Cut
I have tried this with sirloin, skirt steak, and even ribeye when I was feeling fancy. Flank steak remains the winner because its wide flat surface area means more surface contact with the grill and more of that caramelized balsamic crust in every single slice.
Getting That Perfect Corn Char
Do not be afraid of dark spots on your corn. The char is where all the smoky sweet flavor lives, and kernels that look almost burnt are usually the ones people pick out first once they taste them.
Making It a Full Meal
Sometimes I add toasted walnuts or pecans for crunch and serve it with crusty bread to soak up the extra dressing at the bottom of the bowl. A light Pinot Noir or chilled rose ties everything together without overpowering the delicate Gorgonzola notes.
- Add grilled bread slices rubbed with garlic for a heartier presentation
- A handful of toasted pecans takes the texture to another level entirely
- Keep extra vinaigrette in the fridge because someone will always ask for more
Some meals are just food and others become the story you tell later. This one always ends up in the second category.
Recipe FAQs
- → What cut of steak works best for this salad?
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Flank steak or sirloin are ideal because they grill quickly, slice beautifully across the grain, and absorb the balsamic marinade well without becoming tough.
- → Can I make this without a grill?
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A grill pan works just as well for both the steak and the corn. You can also sear the steak in a hot cast-iron skillet and char the corn under a broiler.
- → What's a good substitute for Gorgonzola?
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Blue cheese crumbles offer a similar creamy, pungent profile. Feta is a milder alternative that still provides a nice salty contrast to the sweet balsamic and corn.
- → How long should I marinate the steak?
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At least 20 minutes for noticeable flavor. For deeper balsamic penetration, marinate up to 2 hours in the refrigerator. Beyond that, the vinegar can start to break down the meat's texture.
- → Can I prepare any components ahead of time?
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The steak can be marinated several hours ahead. The vinaigrette keeps in the fridge for days. Grill the corn and slice the vegetables in advance, then assemble everything just before serving to keep the greens crisp.
- → What wine pairs well with this salad?
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A light red like Pinot Noir complements the steak and balsamic without overpowering the fresh vegetables. A chilled dry Rosé is also an excellent match for the grilled corn and creamy cheese.