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Roasted Red Onions

An easy recipe for roasted red onion slices. Roasting removes any bitterness, and the roasted red onions are mellow and creamy. Great with grilled meats!
Course Side Dish
Cuisine American
Keyword onion
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings 2 servings
Calories 148kcal
Author Vered DeLeeuw


  • 1 large red onion
  • 2 tablespoons olive oil
  • 1/2 teaspoon Diamond Crystal kosher salt


  • Preheat oven to 400 degrees F.
  • Peel the onion, slice into 1/4-inch thick slices and separate the slices into rings.
  • Spread the onion rings in a glass baking dish. Add the olive oil and toss to coat. Sprinkle with salt.
  • Roast the onions, stirring once halfway through roasting, until soft and caramelized, about 20 minutes.


Calories: 148kcal | Carbohydrates: 6g | Protein: 1g | Fat: 13g | Saturated Fat: 2g | Sodium: 282mg | Fiber: 1g