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Lemon-Dijon Roast Chicken with Hearty Vegetables

Bone-in chicken thighs roast over carrots, parsnips, and red onion with a bright lemon-Dijon glaze and a simple one-pan timeline.

Bronzed lemon-Dijon chicken thighs roast among browned carrots, parsnips, and red onion.

A short head start gives dense carrots and parsnips time to soften before the chicken joins the pan. Lemon, Dijon, honey, garlic, and thyme form a thin glaze that browns lightly in the chicken juices without turning the vegetables sticky.

Keep the glaze light

Whisking the oil into Dijon, lemon, and honey makes a brushable coating that spreads over both the chicken and vegetables. Patting the thighs dry first helps their skin brown, while leaving the skin facing up keeps it exposed to the oven's heat.

Give sturdy vegetables a head start

Carrots and parsnips need more time than the chicken's finishing glaze, so they begin roasting for five minutes on their own. Cut them evenly and leave breathing room on the pan; both details help the centers turn tender as the edges brown.

A brush coats chicken thighs with lemon-Dijon glaze above carrots, parsnips, and onion. — Chicken thighs sit skin-side up among the glazed vegetables before the main roast.

Use color and temperature together

Start checking when the skin is bronzed and the vegetables have browned edges, but use an instant-read thermometer to judge the chicken. If a thigh is below 175 F, continue in five-minute increments so the vegetables do not overcook while the meat finishes.

Add quick vegetables late

Broccoli florets or another quick-cooking vegetable can join for only the final 12 to 15 minutes. This keeps them vivid and tender while the carrots and parsnips continue to soften, and avoids making the one-pan meal depend on a second cooking schedule.

Lightly glazed chicken skin and browned carrot, parsnip, and onion edges show the finished texture. — Bronzed chicken skin and caramelized vegetable edges signal a well-roasted pan.

Serve from the pan

A five-minute rest lets the chicken juices settle while the vegetables stay warm. Spoon the lemony pan juices over the top just before serving, so the finish stays bright and the glaze remains light.

Lemon-Dijon Roast Chicken with Hearty Vegetables

4 servings

60 minutes total

Ingredients

• 2 lb bone-in, skin-on chicken thighs (about 4 large thighs)
• 1 lb carrots, peeled and cut into 1-inch pieces
• 1 lb parsnips, peeled and cut into 1-inch pieces
• 1 medium red onion, cut into 8 wedges
• 2 tbsp extra-virgin olive oil
• 1 medium lemon, finely zested and juiced
• 2 tbsp Dijon mustard
• 1 tbsp honey
• 3 garlic cloves, finely grated
• 1 tbsp fresh thyme leaves
• 1 1/2 tsp kosher salt
• 1/2 tsp freshly ground black pepper

Method

Heat the oven
Place a rack in the center of the oven and heat to 425 F; line a large rimmed sheet pan with parchment if desired for easier cleanup.
Look for: The oven is fully preheated before the pan goes in.
Cut the vegetables
Cut the carrots and parsnips into similar 1-inch pieces and divide the onion into wedges, keeping the root end attached so the wedges hold together while roasting.
Look for: Carrot and parsnip pieces are close in size for even browning.
Mix the lemon-Dijon glaze
Whisk the lemon zest and juice with Dijon, honey, garlic, thyme, salt, pepper, and olive oil until smooth; the mixture should be loose enough to brush over the chicken and vegetables.
Look for: The glaze is glossy and no streaks of mustard remain.
Start the hearty vegetables
Toss the carrots, parsnips, and onion with about one-third of the glaze directly on the sheet pan, spread them cut-side down where possible, and roast for 5 minutes to give them a head start.
Look for: The vegetables are in a single layer with some space between pieces.
Add and glaze the chicken
Pat the chicken thighs dry, nestle them skin-side up among the vegetables, and brush the remaining glaze over the skin and exposed vegetable surfaces; leave the chicken skin mostly uncovered so it can brown.
Look for: The chicken sits in the pan without covering the vegetables, and the skin has an even glaze.
Roast until browned
Roast at 425 F for 30 minutes, rotating the pan once if the oven browns unevenly; brush any thin glaze and pan juices over the vegetables, keeping the chicken skin facing up.
Look for: The chicken skin is bronzed and the vegetables show browned edges.
Check doneness and finish
Check the thickest thigh without touching bone; if it has not reached 175 F, continue roasting in 5-minute increments, and add any desired quick-cooking vegetables such as broccoli florets only for the final 12 to 15 minutes.
Look for: The thickest thigh registers 175 F and the carrots and parsnips are tender when pierced.
Rest and serve
Rest the chicken on the pan for 5 minutes so its juices settle, then spoon the lemony pan juices over the chicken and vegetables and serve warm.
Look for: The glaze clings lightly to the vegetables and the chicken remains juicy.