Grilled Onions

Learn how to make perfectly grilled onions! Sweet, tender, and full of umami flavor, they're a delicious side dish or topping for burgers, tacos, and more.

Grilled onions

I don’t know why it’s taken me so long to share a recipe for grilled onions! I make them all the time in the summer. They pair well with almost anything, they’re easy and inexpensive, and they just so happen to be delicious, too.

If you’ve never had grilled onions, I’m so excited for you to try this recipe. As the onions cook, their natural sugars caramelize on the grill, so they end up with a sweet, umami flavor and irresistible char. Serve them as a side dish, or top them onto your next taco or veggie burger. Happy grilling!

Onion wedges on a cutting board

How to Grill Onions

To make this grilled onions recipe, you’ll just need 4 ingredients: red onions, olive oil, salt, and pepper.

  • Start by slicing the onions. Place them on a cutting board and slice them in half lengthwise. Then, cut each half into 1-inch thick wedges.
  • Next, preheat the grill. While it warms up, season the onion wedges with olive oil, salt, and pepper.
  • Finally, cook! Grill the onions for 4-5 minutes per side, until char marks form and the onions are tender.

….and that’s it! These grilled onions couldn’t be simpler to make.

Grilled onions on a grill pan

Grilled Onions Serving Suggestions

Now that you know how to grill onions, you’ll start making them left and right! They’re such an easy way to add depth and complexity to summer cooking, and they’re amazingly versatile. Here are a few of my favorite ways to use them:

How do you like to serve grilled onions? Let me know in the comments!

Grilled onions recipe

More Favorite Grilling Recipes

If you loved this grilled onions recipe, try grilling one of these fruits or veggies next:

For more grilling ideas, check out these 31 Best Grill Recipes!

Grilled Onions

rate this recipe:
5 from 1 vote
Prep Time: 5 minutes
Cook Time: 10 minutes
Serves 4 to 6
Learn how to make perfectly grilled onions! I like to serve them as a side dish with other grilled veggies or as a topping for burgers or tacos. Find more serving suggestions in the post above.



  • Preheat a grill or grill pan to medium heat. In a medium bowl, toss the onions with drizzles of olive oil, salt, and pepper.
  • Grill the onions for 4 to 5 minutes per side, or until char marks form and the onions are tender.

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A food blog with fresh, zesty recipes.
Photograph of Jeanine Donofrio and Jack Mathews in their kitchen

Hello, we're Jeanine and Jack.

We love to eat, travel, cook, and eat some more! We create & photograph vegetarian recipes from our home in Chicago, while our shiba pups eat the kale stems that fall on the kitchen floor.