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There is something undeniably comforting about a tray of perfectly roasted vegetables. The heat of the oven transforms humble ingredients like carrots, parsnips, and potatoes into sweet, caramelized delights that are tender on the inside and delightfully crisp on the edges. This recipe is a staple in my kitchen because it requires minimal effort but delivers maximum flavor, thanks to the addition of smashed garlic and aromatic fresh herbs like thyme and sage.
Whether you are preparing a Sunday roast or looking for a healthy side dish for your weeknight dinner, this method ensures success every time. The secret lies in the timing; by giving the denser root vegetables a head start before adding the red onions, everything finishes cooking at the exact same moment. If you love simple vegetable sides, you might also enjoy our Roasted Cauliflower or the incredibly quick 10 Minute Sauteed Zucchini.
Roasting is one of the best ways to enhance the natural sweetness of vegetables. According to the Harvard T.H. Chan School of Public Health, eating a variety of vegetables is essential for good health, and preparing them in delicious ways makes it easy to get your daily servings. This dish is naturally vegan and gluten-free, making it a crowd-pleaser for any dietary requirement.
Ingredients You’ll Need
This recipe relies on fresh, wholesome produce. Here is a closer look at what goes into the roasting pan:
- Small Potatoes: I prefer leaving the skin on for texture and extra nutrients. Red or yellow baby potatoes work best.
- Carrots & Parsnips: These root vegetables become wonderfully sweet when roasted. Parsnips add a distinct, earthy flavor that pairs beautifully with the carrots.
- Red Onion: Provides a savory depth and sweetness once caramelized. We add it later in the cooking process so it doesn’t burn.
- Garlic: Smashed cloves infuse the oil and vegetables with aroma without becoming bitter.
- Fresh Herbs: Thyme and sage are classic pairings for root vegetables. If you have extra herbs, consider using them in our French Roasted Lamb Leg Recipe.
- Extra Virgin Olive Oil: Essential for roasting to ensure even browning and rich flavor.
Product Spotlight
Large Rimmed Baking Sheet
A high-quality baking sheet is the unsung hero of roasted vegetables. This Large Rimmed Baking Sheet is made from aluminized steel, which conducts heat incredibly efficiently. This ensures that your potatoes and carrots brown evenly rather than burning in spots. The rim is also a fantastic feature, preventing any oil or vegetable juices from dripping onto the bottom of your oven and creating a smoky mess.
8-Inch Chef’s Knife
When working with dense root vegetables like parsnips and raw carrots, a sharp knife is non-negotiable for safety and precision. This 8-Inch Chef’s Knife features high-carbon stainless steel that holds its edge beautifully. The ergonomic non-slip handle gives you great control, making it easy to cut through even the toughest vegetables with minimal effort. It turns the prep work from a chore into a breeze.
8-Inch Chef’s Knife
$45.00
- Blade Material: High-Carbon Stainless Steel
- Handle: Ergonomic Non-slip
Stainless Steel Mixing Bowl Set
To get that perfect coating of oil and herbs, you need plenty of room to toss your ingredients. This Stainless Steel Mixing Bowl Set includes a spacious 5-quart bowl that is perfect for the job. It is lightweight yet durable, and the fact that it is dishwasher safe makes cleanup incredibly fast. Having a dedicated large bowl prevents vegetables from flying onto the counter while you season them.
Step-by-Step Instructions
Step 1
Preheat your oven to 200°C / 390°F (180°C fan-forced).
Step 2
Prepare the vegetables: Cut potatoes in half. Cut carrots into 3cm / 1.2″ triangles on the diagonal. Cut parsnips into 4cm / 1.5″ lengths, then into roughly equal-sized batons. Cut the red onion into 2cm / 0.8″ squares.
Step 3
Smash the garlic: Place the side of a knife on unpeeled garlic cloves and hit firmly with your palm so they burst open but stay intact.
Step 4
Toss the onion: In a small bowl, toss the onion squares with 1 tablespoon of olive oil and a pinch of salt and pepper. Set aside.
Step 5
Season other vegetables: In a separate large bowl, combine the potatoes, carrots, parsnips, thyme, and sage. Toss thoroughly with the remaining 3 tablespoons of olive oil, salt, and pepper.
Step 6
First roast: Spread the seasoned root vegetables (not the onions) onto a large roasting tray in a single layer. Roast for 30 minutes.
Step 7
Add onion: Remove the tray from the oven, add the red onions, and give everything a quick toss to distribute.
Step 8
Final roast: Return to the oven for a further 60 minutes, tossing halfway through, until all vegetables are tender and caramelized (total roasting time 1.5 hours).
Step 9
Garnish with chopped parsley and serve immediately.
🥘 Easy Roasted Vegetables Recipe with Garlic and Herbs
📝 Ingredients
- 400g / 14oz small potatoes, skin on (about 10)
- 2 medium/large carrots, peeled
- 1 large parsnip (250g/8oz), peeled
- 1 large red onion (200g / 7oz), peeled
- 5 garlic cloves, smashed
- 5 fresh thyme sprigs
- 3 fresh sage sprigs
- 4 tbsp extra virgin olive oil
- 1 tsp cooking/kosher salt
- 1/4 tsp black pepper
- 2 tbsp fresh parsley, finely chopped (garnish)
👩🍳 Instructions
- Preheat your oven to 200°C / 390°F (180°C fan-forced).
- Prepare the vegetables: Cut potatoes in half. Cut carrots into 3cm / 1.2″ triangles on the diagonal. Cut parsnips into 4cm / 1.5″ lengths, then into roughly equal-sized batons. Cut the red onion into 2cm / 0.8″ squares.
- Smash the garlic: Place the side of a knife on unpeeled garlic cloves and hit firmly with your palm so they burst open but stay intact.
- Toss the onion: In a small bowl, toss the onion squares with 1 tablespoon of olive oil and a pinch of salt and pepper. Set aside.
- Season other vegetables: In a separate large bowl, combine the potatoes, carrots, parsnip, thyme, and sage. Toss thoroughly with the remaining 3 tablespoons of olive oil, salt, and pepper.
- First roast: Spread the seasoned root vegetables (not the onions) onto a large roasting tray in a single layer. Roast for 30 minutes.
- Add onion: Remove the tray from the oven, add the red onions, and give everything a quick toss to distribute.
- Final roast: Return to the oven for a further 60 minutes, tossing halfway through, until all vegetables are tender and caramelized (total roasting time 1.5 hours).
- Garnish with chopped parsley and serve immediately.
Frequently Asked Questions
How do I stop my vegetables from sticking to the pan?
Using a good quality baking sheet is key. You can also line your tray with parchment paper for easy cleanup and to prevent sticking. However, roasting directly on the metal often yields better caramelization.
Can I use dried herbs instead of fresh?
Yes, you can. The general rule is to use one-third the amount of dried herbs compared to fresh. So, for this recipe, use about 1 teaspoon each of dried thyme and sage.
What is the best way to reheat leftovers?
While these are best served immediately, you can reheat them in the oven or an air fryer at 350°F until warmed through. Microwaving tends to make them soft. For more potato inspiration, check out our Perfect Mashed Potatoes Recipe.
Is this recipe healthy?
Yes! It is packed with fiber, vitamins, and minerals. You can check specific nutrient data for ingredients like carrots and potatoes via USDA FoodData Central.
Conclusion
Roasted vegetables are a timeless classic that elevates any meal. The combination of savory garlic, fragrant thyme, and sage with the natural sweetness of the root vegetables creates a harmony of flavors that is hard to beat. Whether you are pairing this with a holiday roast or a simple weeknight chicken dinner, this recipe is sure to become a favorite.
Don’t be afraid to experiment with different vegetable combinations based on what is in season. If you are looking for a bread to serve alongside this to soak up any remaining herb oil, try our Easy Homemade Flatbread Recipe.
We hope you enjoy making and eating these delicious roasted vegetables as much as we do!
