site stats



Roasted Onion Slices


Roasted Onion Slices

Roasted Onion Slices: A Flavorful Side Dish


Roasted onion slices are a simple yet incredibly flavorful side dish that can complement a wide variety of meals.

The natural sweetness of the onions is enhanced by roasting, resulting in tender, caramelized slices that are both savory and slightly sweet.

This dish is perfect for adding depth to your meals, and it requires minimal ingredients and effort.

In this article, we’ll guide you through the steps to create these delicious roasted onion slices.


To prepare these flavorful roasted onion slices, you will need the following ingredients:


4 large onions, peeled and sliced into thick rings

2 tablespoons of olive oil

Salt, to taste

Freshly ground black pepper, to taste

1 teaspoon of dried thyme (optional)


1/2 cup of grated Parmesan cheese (optional)


Preheat the Oven: Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper or lightly grease it with olive oil.

Prepare the Onion Slices:

Peel the onions and slice them into thick rings, about 1/2 inch thick.

Arrange the onion slices in a single layer on the prepared baking sheet.


Season the Onions:

Drizzle the olive oil evenly over the onion slices.

Season with salt, freshly ground black pepper, and dried thyme if using.

Toss the onion slices gently to ensure they are well-coated with the oil and seasonings.

Roast the Onions:


Place the baking sheet in the preheated oven and roast for 25-30 minutes, or until the onions are tender and caramelized around the edges.

If using Parmesan cheese, sprinkle it over the onions during the last 5 minutes of roasting to allow it to melt and become golden brown.

Serve and Enjoy:

Remove the roasted onions from the oven and let them cool slightly before serving.

Serve warm as a side dish to complement your favorite main courses.

Tips and Variations

Different Onions: Try using different types of onions, such as red onions or sweet Vidalia onions, for varying flavors.

Herb Variations: Experiment with other herbs like rosemary or oregano for different flavor profiles.

Balsamic Glaze: Drizzle a balsamic glaze over the roasted onions before serving for a tangy and sweet contrast.


Roasted onion slices are a delicious and versatile side dish that adds a burst of flavor to any meal.


The roasting process enhances the natural sweetness of the onions, making them tender and caramelized.

With just a few simple ingredients, you can create a side dish that is both easy to prepare and incredibly satisfying.

Try this recipe and enjoy the delightful flavors of roasted onions.


Roasted onion slices

Caramelized onions

Easy side dish

Oven-roasted onions

Savory roasted onions

Simple onion recipe

Flavorful side dish

Roasted vegetables

For more recipes click here

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button