Oven Roasted Carrots and Parsnips

Serving a platter of roasted carrots and parsnips.

Carrots and parsnips are often overlooked as a viable side dish and I don’t know why. They’re earthy, sweet and when roasted, they take on a delicious caramelization. As far as carrot and parsnip recipes go, you couldn’t find an easier or more satisfying one than these oven roasted carrots and parsnips with onion, a single potato (optional) and fresh herbs. This simple side dish goes great with rotisserie chicken, pork chops or a simple roast.

carrots and parsnips intersecting in a straight line.

What is a parsnip and what do they taste like?

Unfamiliar with parsnips? That’s understandable. Though they been around since ancient times, this root vegetable, doesn’t get much notice in the grocery store, oft overlooked for their kissing cousins, carrots.

Parsnips even resemble carrots, except they’re white instead of orange and their shape is more pronounced, with a thicker stem narrowing to a very thin tip.

Parsnips are sweet and earthy, with a stronger vegetal flavor than carrots and they’re so versatile, you’ll want to experiment with mashes and soups among other preparations. Because they’re related to the carrot family (both are Apiaceae), they pair very well together, especially in this roasted carrot and parsnip recipe.

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preparing the root vegetables.

Ingredients for roasted carrots and parsnips

  • Parsnips
  • Carrots
  • White Potato
  • Yellow Onions
  • Fresh Rosemary
  • Fresh Thyme
  • Kosher Salt
  • Black Pepper
  • Crushed Red Pepper (optional)
  • Olive Oil

This is less of a recipe and more of a simple roasting method for root vegetables so they become tender, with a deep, sweet caramelization. Doesn’t that sound good?

peeling and slicing potatoes and onions and arranging the veg on a baking sheet with herbs.

Really all you need is a large sheet pan, a slick of olive oil and a hot oven to transform potatoes, parsnips, carrots and onions into a fabulous roasted root vegetable medley.

How to roast root vegetables

  1. Peel the carrots parsnips, potatoes and onions.
  2. Cut them into planks or slices that are roughly equal in size and thickness.
  3. Transfer the veggies to a large sheet pan.
  4. Drizzle the olive oil over the root vegetables and add the chopped herbs, salt, pepper and crushed red pepper flakes, if using.
  5. Use your clean hands to toss the vegetables in the oil and herbs until they’re well coated.
  6. Spread the vegetables into a single layer in the sheet pan. (If the veggies are too crowded, they won’t get as caramelized, so you can use two sheet pans if necessary).
  7. Roast for about 20 minutes, then use a metal spatula to flip the vegetables.
  8. Continue to roast for an additional 20 minutes or until the carrots and parsnips are tender and golden and the onions are translucent with a bit of browning.
I am roasting the vegetables on a sheet pan.

Why do you turn the carrots and parsnips?

Flipping the veg halfway through cooking allows the other sides of the parsnips, carrots and potatoes to get contact with the hot pan and develop a bit of fond (those crispy browned bits that everyone tries to nab).

Why don’t you add garlic?

Normally, I’m a garlic fiend, but I don’t use fresh garlic in this recipe because it would burn and turn bitter in the hot oven with a long roasting time and I don’t want anything to interfere with the flavors of these roasted root vegetables. The

The fresh rosemary and thyme do add a woodsy flavor to the carrots, potatoes and parsnips and that dash of crushed red pepper provides a subtle tingle on the tongue to keep things interesting.

(Note: if you’ve got diners who don’t enjoy spicy foods, you can skip the red pepper flakes.)

Turning the carrots and parsnips with a spatula to finish roasting.

Makes the whole house smell good

As the carrots and parsnips roast, they fill the house with the most wonderful, savory home-cooked aromas. My belly rumbles at the first whiff and I’ve found this is a sure way to lure the family to the kitchen table.

What to serve with oven roasted root vegetables:

More roasted veggies you might like:

Roasted carrots and parsnips on a pewter serving dish.
Print Pin
3.90 from 38 votes

Oven Roasted Carrots and Parsnips

There’s really nothing to this recipe — a few herbs, some olive oil — it’s the oven that transforms plain veg into a sweet roasted marvel!
Author: Lisa Lotts
Course Side Dish
Cuisine American
Keyword carrots, parsnips
Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Servings 8


  • 1 pound parsnips peeled and cut into 1/2″ thick planks, about 1 1/2″ long
  • 1 pound carrots peeled and cut into 1/2″ thick planks, about 1 1/2″ long
  • 1 large white potato peeled and cut into 1/2″ thick planks, about 1 1/2″ long
  • 2 large yellow onions peeled and sliced from root to tip
  • 2 teaspoons fresh rosemary finely chopped
  • 1 tablespoon fresh thyme chopped
  • 1 teaspoon kosher salt
  • ½ teaspoon black pepper
  • ¼ teaspoon crushed red pepper flakes optional
  • 3 tablespoons olive oil


  • Preheat oven to 425℉.
  • Combine parsnips, carrots, potatoes and onion on a large sheet pan. Add rosemary, thyme, crushed red pepper (if using), salt and pepper.
  • Drizzle with olive oil. Using your clean hands, toss vegetables and herbs with olive oil, until well coated with oil, herbs and spice. Spread into a single layer and bake for 20 minutes.
  • Using a spatula flip vegetables and place back in the oven for an additional 10-15 minutes until golden and tender.
  • Note: if the vegetables are scrunched tight on the pan, and your intent is to get some browning and caramelization, you may want to transfer about ⅓ of the veg to another pan to finish cooking. Spreading out the vegetables allows for better browning.


Calories: 145kcal | Carbohydrates: 23g | Protein: 2g | Fat: 6g | Saturated Fat: 1g | Sodium: 339mg | Potassium: 544mg | Fiber: 6g | Sugar: 7g | Vitamin A: 9532IU | Vitamin C: 21mg | Calcium: 54mg | Iron: 1mg

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A pin of scooping the carrots and parsnips on a sheet pan.

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  1. 5 stars
    Delicious! Made this recipe tonight for a side dish and everyone enjoyed it. So easy. Thank you for sharing.

  2. Can you substitute sweet potatoes for white potatoes? With the carrots and parsnips? Thought about a drizzle of balsamic or honey when almost done? For thanksgiving.

  3. Always loved them together the adding of potatoes and onions sound great will bake some tomorrow. Thanks

  4. 5 stars
    Perfect. I brought my rosemary plant in for the winter so I had this on hand.

  5. 5 stars
    Yup, I usually overlook carrots and parsnips but recipes like this remind me how delicious and easy they can be to add to the holiday table! Thank you!

  6. I love this combo; I am sure these were super yummy and flavorful. I enjoy root veggies as well, and I will be making these next! Thanks so much for sharing,

  7. 5 stars
    Love the idea of parsnips and carrots baked together. Parsnips are often overlooked. Such a great recipe, the family loved it as a side with our roast the other night. Thank you!

  8. 5 stars
    My kiddos and I made this together! We have been spending a lot more time in the kitchen lately and its so fun. They really enjoyed making this recipe but they enjoyed eating it even more! Thanks for this delish creation, we are adding it to our “make again” list!!

  9. Shadi+Hasanzadenemati says:

    5 stars
    Can’t wait to try this, I know it’s going to be a hit!

  10. 5 stars
    This looks absolutely delicious and so perfect for fall, I can’t wait for my whole house to smell like roasting vegetables!

  11. 5 stars
    This was sooo tasty. Had it with Rottiserrie chicken, broccoli and new potatoes.

    1. Glad you liked it, Kate! I think roasting transforms vegetables!

  12. Talula Cartwright says:

    5 stars
    Thank you. I love vegetables.

    1. I’m so glad you like it Talula! I love to cook with vegetables!