Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (2024)

Home » Vegetable Recipes » Roasted Leeks

Last updated: · Recipes developed by Vered DeLeeuw and nutritionally reviewed by Rachel Benight MS, RD · This website generates income via ads and uses cookies.

Jump to Recipe Print Recipe

Roasted leeks become wonderfully caramelized and have a mellow, almost sweet flavor.

They make a wonderful side dish for meats and fish, and leftovers keep well in the fridge for several days.

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (1)

My mother-in-law makes an amazing quiche with leeks. That's how I first got acquainted with this very interesting vegetable. It looks like a huge green onion, and it has an onion-like flavor, but it's milder, making it appropriate as a side dish and not just as a condiment.

The best thing about roasting leeks in the oven is that baking them mellows their onion flavor, caramelizes them, and brings out their natural sweetness. They are very, very good and they go well with just about any main course you can think of.

Jump to:
  • Ingredients
  • Instructions
  • Expert tip
  • Frequently asked questions
  • Variations and substitutions
  • Serving suggestions
  • Storing leftovers
  • Related recipes
  • Foodie Newsletter
  • Recipe Card

Ingredients

You'll only need a few simple ingredients to make this tasty side dish. The exact measurements are listed in the recipe card below. Here's an overview of what you'll need:

Fresh leeks: They look just like giant green onions. I wasn't familiar with them in the past, but it's easy to spot them in the store once you know what to look for!

Olive oil: I love cooking with this delicious oil. But if you'd rather use an oil with a higher smoke point, you can use avocado oil instead.

Kosher salt and black pepper: If using fine salt, you should reduce the amount you use, or the dish could end up too salty.

Grated Parmesan: It's best to use finely grated cheese and not coarsely shredded in this recipe.

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (2)

Instructions

I like to roast leeks in the oven. It's an easy cooking method, and it makes them wonderfully caramelized. Scroll down to the recipe card for the detailed instructions. Here are the basic steps:

You start by trimming the leeks. Then you cut them in half lengthwise, rinse and dry. Next, you coat them with olive oil (be generous!) and sprinkle them with salt and pepper.

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (3)

Bake them in a 425°F oven for 20 minutes. Sprinkle them with parmesan and continue baking until golden brown, about 10 more minutes.

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (4)

Expert tip

The baking times listed here are merely a suggestion. The idea is to cook the leeks until they are browned and caramelized. That's when they lose their sharpness and become wonderfully sweet and flavorful.

So when you pull them out of the oven, if they're not golden brown, put them back in for a few more minutes, until they become caramelized.

Frequently asked questions

What do leeks taste like?

Leeks look like oversized green onions. When raw, their flavor resembles the flavor of shallots, although they are sweeter and more delicate.

Can you eat raw leeks?

They are not usually eaten raw, although you could slice the bulb very thinly and add it to salads.

Cooking them in the oven mellows their onion flavor, caramelizes them, and brings out a wonderful sweetness.

Roasted leeks taste very different than raw ones - just like baked onions are very different than raw onions.

Are all parts of the leek edible?

They theoretically are, but the leaves are so tough and fibrous that they are usually discarded.

You could, however, wash them well and add them to a soup for flavor. But I would still discard them after cooking.

How do you prepare leeks for cooking?

First, you cut off the leaves, leaving just the white bulb and the light green part. Next, slice off the hairy bottom.

Now, cut the bulb in half lengthwise. It will likely hide dirt inside its folds, so rinse it well, then dry it off before roasting.

Variations and substitutions

I love this recipe as is and almost always make it as written. But in case you'd like to vary the basic recipe, here are a few ideas for you:

  • Use avocado oil or melted ghee instead of olive oil.
  • Add a sprinkle of garlic powder in addition to salt and pepper.
  • Sprinkle the finished dish with red pepper flakes for color and a hint of spice.

Serving suggestions

I often serve roasted leeks with fish. They make a great side dish to baked catfish. And when you make these two dishes together, you can keep the oven at 425°F for both, baking the fish just 5 minutes longer.

They are also very good with baked salmon, with parmesan-crusted chicken, and with baked chicken legs.

Storing leftovers

Leftovers keep well when stored in the fridge, in a sealed container, for 3-4 days. Reheat them gently, covered, in the microwave on 50% power, or serve them cold like antipasti.

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (5)
  • Roasted Fennel
  • Roasted Red Onions
  • Roasted Onions
  • Roasted Garlic Cloves

Recipe Card

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (10)

5 from 213 votes

Pin Recipe Print Recipe

Roasted Leeks with Olive Oil and Parmesan

Roasted leeks become beautifully caramelized and have a mellow, almost sweet flavor. They make a wonderful side dish to meats and fish.

Prep Time15 minutes mins

Cook Time30 minutes mins

Total Time45 minutes mins

Course: Side Dish

Cuisine: American

Servings: 4 servings

Calories: 153kcal

Author: Vered DeLeeuw

Ingredients

  • 6 leeks
  • 3 tablespoons olive oil
  • ½ teaspoon Diamond Crystal kosher salt
  • ¼ teaspoon black pepper
  • ¼ cup grated Parmesan

Instructions

  • Preheat your oven to 425 degrees F.

  • Trim the hairy bottom of the white part of the leeks. Trim the dark greens, leaving the white and light green part only.

  • Cut the leeks in half lengthwise, then rinse them well (there’s often dirt trapped in there) and dry. Arrange them in a 9 X 13 baking dish, cut side down.

  • Drizzle the leeks with the olive oil and use your hands to thoroughly coat them. Sprinkle them with salt and pepper.

  • Roast them for 20 minutes. Remove from the oven, turn so that their cut side is up, sprinkle with the Parmesan, then continue roasting until fork-tender and golden brown, about 10 more minutes.

Video

Notes

The baking times listed here are merely a suggestion. The idea is to cook the leeks until they are browned and caramelized. That's when they lose their sharpness and become wonderfully sweet and flavorful. So when you pull them out of the oven, if they're not golden brown, put them back in for a few more minutes, until they become caramelized.

Add Your Own Notes

Click here to add your own private notes. They're only visible to you. If you clear your browser's cache, they'll be lost.

Nutrition per Serving

Serving: 3pieces | Calories: 153kcal | Carbohydrates: 9g | Protein: 3g | Fat: 12g | Saturated Fat: 2g | Sodium: 246mg | Fiber: 1g

Subscribe

I send out a weekly newsletter with a recipe and tips. Want these recipes in your inbox? Subscribe today! You can unsubscribe at any time.

Follow Me

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (11) Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (12) Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (13) Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (14) Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (15) Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (16)

Disclaimers

Cup measurements refer to the standard American cup, which is 240 milliliters. Most of my recipes are low-carb (or keto) and gluten-free, but some are not. Please verify that a recipe fits your needs before using it. Recommended and linked products are not guaranteed to be gluten-free. Nutrition info is approximate, and the carb count excludes non-nutritive sweeteners. Nutrition info may contain errors, so please verify it independently. Recipes may contain errors, so please use your common sense when following them. Please read these Terms of Use carefully before using any of my recipes.

❤️ Let's connect! Follow me on Pinterest, Facebook, TikTok, YouTube, Instagram, or Twitter.

More Vegetable Recipes

  • Roasted Eggplant
  • Roasted Brussels Sprouts
  • Green Beans with Bacon
  • Roasted Yellow Squash

About the Author

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (21) Vered DeLeeuw, LL.M., CNC, has been following a low-carb real-food diet and blogging about it since 2011. She's a Certified Nutrition Coach (NASM-CNC), has taken courses at the Harvard School of Public Health, and has earned a Nutrition and Healthy Living Certificate from Cornell University. Her work has appeared in several major media outlets, including Healthline, HuffPost, Today, Women's Health, Shape, and Country Living. Click to learn more about Vered.

Reader Interactions

Leave a Comment

Roasted Leeks with Olive Oil and Parmesan - Healthy Recipes Blog (2024)

FAQs

How does Gordon Ramsay cook leeks? ›

Season leeks with soy, maple, sesame oil, and mirin. Top with sliced garlic and a few knobs of butter around the outside of the pan. Add just enough stock to cover leeks halfway, bring to a boil and pop into over to roast until caramelized and tender when pierced with a knife.

How to cook leeks in oven jamie oliver? ›

Arrange the leeks in one layer in a baking tray or earthenware dish and roast in the preheated oven for about 10 minutes until golden and almost caramelized. Keep your eye on them - I've seen many chefs burn baby leeks when cooking them this way and it drives me mad!

How to eat leeks? ›

When leeks are sliced or chopped, they can be used in place of onions or shallots in soups, stews, and casseroles. You can also showcase their subtle, sweet flavor in pasta dishes like our Red Lentil Rotini with Silken Leeks and Shiitakes or Vegan Penne with Artichokes, Leeks, and Lentils.

How long should leeks be cooked? ›

To cook: Leeks can be boiled, braised or steamed. Sliced leeks should be cooked for 5-7 minutes until tender but still firm. Whole small leeks should be cooked for 10-15 minutes until tender but still firm, top with a cheese sauce and then brown under a preheated grill for 5 minutes or until golden.

Why do you soak leeks in water? ›

However, washing leeks is particularly essential because they get LOTS of dirt and grit stuck in them during the growing process. Fortunately, a quick slice and swish in a bowl of water easily helps all that dirt fall out of your leeks and into the bottom of the bowl.

Are cooked leeks healthy? ›

Leeks provide several nutrients, such as vitamins A, C, and B6. Leeks are very low in calories, but do contain a decent amount of essential vitamins and minerals, including vitamins like vitamins A, B6, C, and K, and minerals like copper and manganese.

Why don't you use the green part of leeks? ›

The common wisdom is that leek greens are so tough, they should only be used to make stock. I agree that leek greens are great to throw into stock, but that's far from their only use. Yes, the fact is that they are tough.

Can you overcook leeks? ›

Leeks should never be browned, or overcooked, because it will turn them into slimy mush. Instead, cook them until they are tender. They need to be cooked carefully and with a watchful eye because it's easy to undercook and overcook them.

How do the French eat leeks? ›

“Leeks are a diet food for French women. We boil them and drink the water,” she says. “They're a magic trick, a little secret.” Employee Julien chimes in: “It's a common drink that helps shed kilos.”

How to eat leeks for weight loss? ›

Magical Leek Soup is a broth made from boiling leeks in water. It is a mild diuretic and a secret diet food for French women for generations. The practice, as written by Mireille Guiliano in her book, "French women don't get fat" is to sip the broth throughout the day and eat the boiled leeks as the meal.

What is the most popular way to eat leeks? ›

Here are a few of my favorite ways to use them:
  1. On their own! Grill or roast them and enjoy them as a side dish. ...
  2. In soups. Leeks are famous for their ability to add depth to soups, stews, and stock. ...
  3. In pasta. ...
  4. In risotto. ...
  5. With eggs. ...
  6. In stuffing. ...
  7. On pizza.

When should you not eat leeks? ›

The dark green tops of leeks should look fresh. Avoid leeks with yellowing or wilting tops.

Should leeks be washed before cooking? ›

Cleaning and prepping whole leeks

Cut straight through, up to and through the green ends of the leek, leaving the pale part of the leek whole. Rinse: Fan open the leek and place under cold running water. Rinse out any dirt or sand.

Why use leeks instead of onions? ›

Flavor Profile: Leeks offer a milder and sweeter flavor compared to onions. They have a subtle onion taste with a hint of garlic, making them a favorite in soups and casseroles.

Why do you only use the white part of leeks? ›

Many recipes for leek soup call for just the white part of the leek, probably to keep the soup a paler colour, but the greens have just as much, if not more, flavour, and colour the soup a brilliant light green.

How long does it take to caramelize leeks? ›

Add the finely sliced leeks and a ¼ teaspoon of salt. Stir the leeks to mix and then continue stirring every 2 minutes or so, but keep a close eye on them in between. Leeks don't take as long to caramelize as onions do, but it will still take about 20-25 minutes.

Top Articles
Latest Posts
Article information

Author: Wyatt Volkman LLD

Last Updated:

Views: 6421

Rating: 4.6 / 5 (46 voted)

Reviews: 85% of readers found this page helpful

Author information

Name: Wyatt Volkman LLD

Birthday: 1992-02-16

Address: Suite 851 78549 Lubowitz Well, Wardside, TX 98080-8615

Phone: +67618977178100

Job: Manufacturing Director

Hobby: Running, Mountaineering, Inline skating, Writing, Baton twirling, Computer programming, Stone skipping

Introduction: My name is Wyatt Volkman LLD, I am a handsome, rich, comfortable, lively, zealous, graceful, gifted person who loves writing and wants to share my knowledge and understanding with you.