These oven roasted root vegetables turn carrots, parsnips, beets, butternut squash and red onion deeply golden and sweet at the edges in a hot 425°F oven. Rosemary and thyme roast right alongside, and a splash of sherry vinegar goes on while the pan is still sizzling. It's an easy autumn and winter side that takes about an hour, start to finish.
375°F vs 425°F vs 450°F: which oven heat suits roasted roots?
A hot oven, 425°F (220°C), gives the best balance of browned outsides and tender centers in about 40 minutes. The heat matters because roots are full of water. At lower temperatures, that moisture escapes slowly and the vegetables stew in their own steam, turning soft and pale before they ever brown.
Here's how the common oven settings compare:
- 375°F (190°C): tender and evenly cooked, with light color. It takes 50 to 60 minutes and suits a busy oven shared with a roast.
- 425°F (220°C): deep caramelization at the edges and soft middles in 38 to 40 minutes. This is the setting to use.
- 450°F (230°C): faster browning, but the edges can scorch before dense beets are cooked through.
Space counts as much as heat. If the pieces are piled up, they'll steam no matter the temperature, so use two pans rather than crowding one. Rotate the pans between racks halfway through for even color.
Why do the beets go in their own bowl?
Red beets bleed their color into anything they touch, including squash, parsnips and your hands. That's harmless, and some people like the pink edges, but there are easy ways to keep the colors separate if you'd rather.
Toss the beets in their own bowl with a little of the oil and salt, then roast them on one end of the pan or on a separate small tray. Mix everything together only when you plate. Golden or Chioggia beets are another option, since they barely bleed at all.
For your hands, wear thin gloves while peeling and cutting, or rub your fingers with a bit of lemon juice and salt afterward. Cut beets on a plate or a piece of parchment rather than a wooden board, which stains easily. A vegetable peeler works better than a knife on raw beets, and it's safer on their round, slippery shape.
When should the sherry vinegar go on?
Roasting concentrates the natural sugars in carrots, parsnips and squash. That sweetness is the whole point, but with nothing to balance it, a full plate can taste flat and heavy. A tablespoon of sherry vinegar fixes that without making the vegetables taste sour.
Timing matters. Drizzle it over the vegetables the moment they come out of the oven. It'll sizzle, part of the sharpness cooks off, and the hot vegetables soak up the rest. Added to cold vegetables, the same vinegar just sits on the surface and tastes harsh.
Sherry vinegar has a nutty, rounded flavor that suits roasted roots best. Red wine vinegar is a fine swap. Balsamic works too, though it adds more sweetness, so use a little less. Finish with fresh parsley or chives for a green, clean note, and a thin drizzle of good olive oil. Soft herbs go on at the end; the rosemary and thyme are the ones that can take the heat.
Cutting each root so it finishes at the same time
Each vegetable has a different density, so size is the one thing you can control. A small cube of beet and a big chunk of sweet potato will never finish together; you'll end up with some pieces charred and others still hard in the middle. Aim for roughly 1 inch (2.5 cm) pieces across the board, and go slightly smaller with the densest roots.
| Vegetable | How to cut | Notes |
|---|---|---|
| Carrots | 1 inch lengths, halve thick ends lengthwise | Thin tips brown first, so keep them a bit longer |
| Parsnips | 1 inch lengths, quarter the fat tops | Remove a woody core if it's very thick |
| Beets | 3/4 inch (2 cm) wedges | Densest of the group, so cut smaller |
| Butternut squash | 1 inch cubes | Softens fastest, so don't cut smaller |
| Red onion | Thick wedges through the root | The root end holds the layers together |
Other roots work too. Sweet potato, celery root and turnips all roast well at the same size.
Mains, leftovers and reheating
This is a side that fits almost any autumn or winter main course. It sits naturally next to a lemon herb roast chicken, since both can share the oven, and it's just as good with grilled lamb chops with chimichurri, where the sharp herb sauce plays off the sweet roots.
Leftovers are useful. Pile them over farro or couscous with a spoonful of yogurt and a squeeze of lemon for a quick grain bowl, or blend them with hot broth into a smooth soup. Reheat them on a sheet pan at 425°F for 8 to 10 minutes, which brings back some of the crisp edges; the microwave makes them soft. Store cooled leftovers in a covered container in the fridge, where they'll keep for 3 to 4 days.
The recipe
Oven Roasted Root Vegetables with Herbs and Sherry Vinegar
Ingredients
- 3 large carrots (about 12 oz / 340 g), peeled and cut into 1 inch (2.5 cm) pieces
- 3 medium parsnips (about 12 oz / 340 g), peeled and cut into 1 inch (2.5 cm) pieces
- 1 small butternut squash (about 1 1/2 lb / 680 g), peeled, seeded and cut into 1 inch cubes
- 2 medium beets (about 10 oz / 285 g), peeled and cut into 3/4 inch (2 cm) wedges
- 1 large red onion, cut into thick wedges through the root
- 6 garlic cloves, unpeeled
- 4 tablespoons (60 ml) extra-virgin olive oil, plus more for finishing
- 1 1/2 teaspoons kosher salt (or 1 teaspoon flaky sea salt)
- 1/2 teaspoon freshly ground black pepper
- 4 sprigs fresh rosemary
- 6 sprigs fresh thyme
- 1 tablespoon honey (optional)
- 1 tablespoon sherry vinegar (or red wine vinegar)
- 2 tablespoons chopped fresh flat-leaf parsley
Instructions
- Heat the oven. Heat the oven to 425°F (220°C) with racks in the upper and lower thirds. Line 2 large rimmed sheet pans with parchment paper.
- Season the vegetables. In a large bowl, toss the carrots, parsnips, squash, onion and garlic with 3 tablespoons of the oil, the salt and the pepper until every piece is coated. Toss the beets separately with the remaining tablespoon of oil and a pinch of salt.
- Spread them out. Spread the vegetables in a single layer across both pans, keeping the beets together at one end. Tuck the rosemary and thyme sprigs in between.
- Roast and turn. Roast for 20 minutes. Turn the vegetables with a spatula, swap the pans between racks, and drizzle the honey over them if using. Roast 18 to 20 minutes more, until the edges are deep golden and a knife slides easily into the beets.
- Add the vinegar. Take the pans out and immediately drizzle the sherry vinegar over the hot vegetables. Toss gently.
- Finish and serve. Transfer to a platter, squeeze the soft garlic out of its skins over the top, and discard the herb stems. Scatter with parsley, add a thin drizzle of olive oil and serve warm.
Cook's notes
- Swap in any roots you like, such as sweet potato, celery root, turnips or kohlrabi, cut to the same 1 inch size.
- Add the honey only at the halfway point; at 425°F it can burn if it's on the pan for the full 40 minutes.
- Reheat leftovers on a sheet pan at 425°F for 8 to 10 minutes to bring back the crisp edges.
Oven Roasted Root Vegetables questions
How far ahead can I peel and cut the roots?
Up to a day. Peel and cut the carrots, parsnips, squash and onion, then store them in a covered container in the fridge. Keep the beets in a separate container so they don't stain the rest. Pat everything dry before tossing it in oil, because wet vegetables steam and won't brown as well in the oven.
Do I need to peel root vegetables before roasting?
Carrots and parsnips can be roasted unpeeled if you scrub them well, and the skins add a slightly earthy flavor. Beets and butternut squash should be peeled, since their skins are tough. Thin-skinned young carrots and baby potatoes never need peeling. The garlic cloves stay in their skins so they steam and turn soft and sweet.
Why did my root vegetables come out soft and pale?
Soggy roasted vegetables usually come from a crowded pan or an oven that isn't hot enough. When pieces overlap, they trap steam and soften instead of browning. Use two sheet pans, keep the oven at 425°F, and make sure the vegetables are dry before you add the oil. Turning them once halfway through helps both sides brown.
Can I make roasted root vegetables without oil?
You can, though they won't brown as deeply. Line the pan with parchment, toss the vegetables with a few tablespoons of vegetable broth and the seasonings, and roast at 425°F, turning every 15 minutes. They'll come out tender with lighter color. Even one teaspoon of oil per pan makes a noticeable difference in browning and flavor.
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