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Grilled Steak with Peaches and Onions

4.5 stars (2 ratings)

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This grilled steak with peaches and onions is topped with a dash of basil pesto and a drizzle of balsamic reduction for a delicious take on summertime grilling. For this recipe we do all the work on the grill. Not only do we get excellent results, but we also keep that hot summer heat out of the kitchen. One large (1.5 – 2 lb) steak should feed a family of four. This means less work for you and more time for enjoying your summer celebrations together.

Thanks to Safeway for sponsoring today’s post. All opinions are 100% mine.

Grilled steak on a wooden cutting board with grilled peaches, grilled onions, basil pesto, and balsamic reduction. A blue and white plaid napkin and a serving steak and fork.

When the heat of summer turns on so does my grill, so I’m back with another great recipe for summertime grilling. As we expand our grilling expertise past the basics, a perfectly grilled steak is essential. With all the flavors of summer packed into this one, it’s an ideal addition.

It’s got a perfectly seared medium-rare steak, grilled fresh peaches, and grilled sweet onions. That’s right! We do all of the cooking outside, keeping the heat out of the kitchen. To serve, thinly slice the steak against the grain and drizzle on a balsamic reduction and a bit of basil pesto. So good, you’ll keep coming back to it all summer long.

Focusing on larger cuts of steak, a steak weighing in between one and a half to two pounds should feed a family of four. It also serves as a beautiful centerpiece for the table, making it a gorgeous family-style entree perfect for summertime celebrations at home.

Overhead image of grilled steak with peaches and onions on a wooden cutting board next to a gray plate with a single serving.

Grilled Steak – Which Cut Is Best?

When it comes to choosing the best cut of steak, your first stop should always be the butcher counter. The people behind that counter know their steak and, if they are like my local Safeway employees, they are more than happy to geek out about their favorite cuts. With any luck, they will also throw in a little bit of education for good measure.

When I began seeking out the perfect cut of steak for this recipe I wanted something lean, that would cook quickly, and taste great at medium-rare. It had to be a large cut that can be sliced and served family style, while also looking pretty on the plate. Afterall, what good is a recipe post about summertime grilling if I can’t make it look pretty?

A quick chat with my butcher helped me narrow down my choices to top round, skirt steak, or flank steak. Each of these tend to have a largish, squarish shape, which means they cook fairly evenly. They also are best when thinly sliced against the grain prior to serving.

An overhead shot of the labeled ingredients for grilled steak with peaches and onions. On a cutting board: peaches, sweet onions, balsamic glaze, and basil pesto. To the right a packaged steak, a Safeway bag, grocery receipt, and Safeway club card.

Grilled Steak – How to Cook It

Start by seasoning your steak liberally with salt and pepper. Nothing fancy, but make sure to do this at least 15 minutes before you grill to allow the salt time to melt and be absorbed by the meat.

Grill the steak over direct medium-high heat. With most of these steak cuts, the surface area increases with the weight, but the thickness stays roughly the same. The thickness of the steak is what determines the grill time. A one inch thick steak will cook fairly quickly no matter how much it weighs.

It takes about 3 – 4 minutes per side for a one inch thick steak to reach 130º. This is my ideal for a rare to medium-rare steak after it rests. For true medium-rare remove the steak from the grill once it reaches 135º. The temperature will raise to about 140º – 145º after resting.

Yes, you should use a meat thermometer. Practice makes perfect when it comes to grilling steak, but you won’t know what your perfect temperature is until you’ve measured what you’ve practiced. Once you know your ideal temperature, you can always get it right for you and your family.

An overhead shot of the prepared ingredients for grilled steak with peaches and onions. Peaches on a cutting board next to a small bowl of balsamic reduction. Sliced sweet onions in a glass bowl. Basil pesto, salt, a pepper mill, a jar of avocado oil. A Safeway bag, grocery receipt, and Safeway club card.

Grilled Peaches

If you’ve never tasted the sweet and smoky flavor of a grilled peach, then you are in for a treat! Start with fresh peaches that have ripened just enough to begin to soften. If they are too ripe, they will fall apart on the grill.

Cut them into halves, removing the stone. Freestone peaches are easier to work with because the stone easily detaches, but with a little extra knife work cling peaches work too.

The peaches should be brushed with oil on both (all) sides prior to grilling. Start them over direct medium-high heat with the flesh side down. Grill them for about 4 minutes.

When grilling the skin side be aware that the skins are delicate and will char quickly. You’ll want the skin sides grilled over indirect heat, or in a cooler section of your grill. The skin side takes about 2 minutes to cook.

Grilled steak on a wooden cutting board next to a small bowl of basil pesto. Grilled peaches next to a bowl of balsamic reduction. Grilled onions in a glass bowl next to a Safeway bag, receipt, and Safeway Club card..

Grilled Onions on the Grill

Everyone who loves a good steak knows that grilled onions make a delicious addition to your meal. My favorites are sweet summer onions like Walla Walla or Vidalia. However, this often means that while the steak is grilled outside, the onions are left to cook inside. Not with this recipe!

The solution is a cast iron pan. Cast iron can withstand the intense heat of the grill and give great results that bring out the natural sweetness in the onions. At my home, my cast iron griddle practically lives on the grill all summer long.

As the onions cook, they will reduce in volume to about half or one third of what you started with. This isn’t bad, but before you start cooking it looks like a lot of onions. By the time you are ready to serve it, it’s not so much.

For safety reasons and to prevent grill flare-ups, toss the sliced onions in a large bowl with cooking oil, salt, and pepper before putting them onto the grill. Use an oil that is good for high heat cooking. My current favorite is avocado oil, but grapeseed, refined coconut, or canola oil are also good choices.

Don’t slice them too thinly and make sure to stir them occasionally to prevent burning. The onions will take the longest to cook. I usually give them a 10 minute head start on the steak and peaches. If they are done more quickly than anticipated, you can always throw them back on to warm up while the steak is resting.

A gray plate with a serving of grilled steak with peaches and onion next to a cream colored napkin with a fork and knife. A serving platter is blurred in the background.

Grilled Steak with Peaches and Onions

Fire up the grill and get ready to elevate your next family celebration with this grilled steak featuring fresh peaches and sweet onions topped with basil pesto and balsamic reduction. Filled with summertime flavors, it’s a great way to get the heat out of the kitchen without sacrificing any of the flavor.

Looking for more great summertime grilling recipes? Check out the grilled shrimp grain bowl, filet mignon with peach mango cilantro sauce, or grilled maple mustard chicken. For more great summertime ideas check out all my summer recipes.

Grilled steak on a wooden cutting board with grilled peaches, grilled onions, basil pesto, and balsamic reduction. A blue and white plaid napkin and a serving steak and fork.

Grilled Steak with Peaches and Onions

Fire up the grill and get ready to elevate your next family celebration with this grilled steak featuring grilled peaches and grilled sweet onions topped with basil pesto and balsamic reduction.
4.5 stars (2 ratings)
prep: 20 minutes
cook: 15 minutes
total: 35 minutes
servings: 4 servings


  • 1.5 – 2 lbs steak – flank (skirt, or top round)
  • 4 medium peaches – about 1.5 lbs
  • 2 medium sweet onions – about .75 lbs
  • 1/4 cup basil pesto
  • 2 TBSP balsamic reduction
  • 2 – 4 TBSP avocado oil – or other high heat cooking oil
  • salt
  • pepper


  • Season both sides of the steak with salt and pepper at least of 15 minutes prior to grilling.
  • Slice onions, place in a bowl and toss with avocado oil, salt and pepper to coat.
  • Halve peaches and brush with avocado oil.
  • Place cast iron skillet or griddle top in the grill. Preheat grill and griddle for medium-high direct heat.
  • Once hot, cook the onions on the griddle for 12 – 15 minutes, stirring every three minutes or so to prevent burning.
  • About 5 minutes later add the steak to the grill. Cook about 3 – 5 minutes per side for medium rare. Confirm temperature at 125º with a meat thermometer. Cover and rest for 5 minutes, the temperature will continue to rise until it hits about 130º.
  • Next add the peaches, flesh side down. Cook for 4 minutes, then flip and cook an additional 2 minutes.
  • Once the steak is rested, thinly slice it against the grain. Plate the steak, peaches, and onions together then top with the basil pesto and balsamic reduction.

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Serving: 1Calories: 741kcalCarbohydrates: 33gProtein: 65gFat: 40gSaturated Fat: 10gPolyunsaturated Fat: 26gCholesterol: 182mgSodium: 176mgFiber: 4gSugar: 26g

Nutrition information is automatically calculated and is for general information purposes only. For the most accurate information, calculate using your select brands and exact measurements.

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About Renee N Gardner

I'm the recipe developer, food photographer, and mastermind behind Renee Nicole's Kitchen, where I help create kitchen confidence to inspire home cooks to become home chefs. No fancy fads here, just high-quality, homemade recipes featuring seasonal ingredients.

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