Chicken and Sweet Potato Traybake

Featured in: Weeknight Dinners

This vibrant one-pan traybake combines bone-in chicken thighs marinated in piri-piri seasoning with chunks of sweet potato, bell peppers, red onion, and cherry tomatoes. Everything roasts together at 200°C for 40 minutes, creating a complete Mediterranean-inspired meal with bold, smoky flavors. The chicken emerges juicy with crispy skin while the vegetables caramelize beautifully, delivering three of your five-a-day in a single serving.

Updated on Fri, 30 Jan 2026 10:35:00 GMT
Juicy piri-piri chicken thighs roasted next to golden sweet potato wedges on a single baking tray. Pin It
Juicy piri-piri chicken thighs roasted next to golden sweet potato wedges on a single baking tray. | pecanpan.com

The smell hit me first: smoky, bright, and faintly sweet, all mingling in one tray. I'd been in a cooking rut, relying too much on separate pots and pans, when a friend mentioned she threw everything onto one sheet and called it dinner. I was skeptical until I pulled this traybake out of the oven, the chicken skin crackling, the sweet potatoes caramelized at the edges, and the peppers soft and glossy. It felt like cheating, but in the best way. Now it's my weeknight rescue plan.

I made this for a birthday dinner once, doubling the recipe and using two trays. My sister, who normally picks at vegetables, went back for seconds on the sweet potatoes. She said the edges tasted like they'd been cooked in chicken fat, which they had, and that made all the difference. Since then, I've stopped apologizing for one-pan meals. They can be just as memorable as anything fussier.

Ingredients

  • Bone-in, skin-on chicken thighs: The skin crisps beautifully in a hot oven, and the bone keeps the meat juicy even if you roast it a few minutes longer than planned.
  • Piri-piri seasoning: Look for a blend with citrus and chili notes; it should smell bright and slightly smoky, not just hot.
  • Sweet potatoes: Cut them into even chunks so they roast at the same rate; uneven pieces mean some will be soft while others stay firm.
  • Red onion: Thick wedges hold their shape and turn sweet and jammy as they caramelize alongside the chicken.
  • Bell peppers: Use a mix of red and yellow for color and sweetness; green peppers can taste slightly bitter in this context.
  • Cherry tomatoes: Add them late so they soften and burst without turning to mush; their juices mingle with the pan drippings.
  • Garlic: Slice it thinly and scatter it over the vegetables; whole cloves can scorch, but slices soften and sweeten.
  • Olive oil: A light drizzle helps the vegetables caramelize and prevents them from sticking to the tray.

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Instructions

Preheat and prepare:
Set your oven to 200°C (180°C fan). Line a large baking tray with parchment if you want easier cleanup, though a bare tray gives better caramelization.
Season the chicken:
Toss the thighs in a bowl with piri-piri seasoning, olive oil, smoked paprika, salt, and pepper until every piece is coated. The skin should look glossy and speckled with spice.
Arrange the vegetables:
Spread the sweet potatoes, onion wedges, and peppers on the tray in a single layer, then drizzle with olive oil and scatter over the garlic. Give everything a toss so the oil coats each piece.
Nestle the chicken:
Place the seasoned thighs among the vegetables, skin-side up. Leave a little space around each piece so the skin can crisp instead of steam.
Roast:
Slide the tray into the oven and roast for thirty minutes. The kitchen will start to smell like a spice market crossed with a Sunday roast.
Add the tomatoes:
Scatter the halved cherry tomatoes over the tray and return it to the oven for another ten minutes. The tomatoes should soften and release their juices, and the chicken juices should run clear when pierced.
Garnish and serve:
Sprinkle with fresh coriander or parsley if you have it, and serve with lemon wedges for squeezing. The citrus cuts through the richness and brightens every bite.
A vibrant, one-pan Chicken and Sweet Potato Traybake with caramelized red onions and bell peppers. Pin It
A vibrant, one-pan Chicken and Sweet Potato Traybake with caramelized red onions and bell peppers. | pecanpan.com

One evening, I served this with nothing but a green salad and some crusty bread to mop up the pan juices. My partner said it tasted like something we'd order at a neighborhood bistro, and I realized that was the highest compliment. Sometimes the simplest meals, the ones that don't ask much of you, are the ones that feel the most generous.

What to Do with Leftovers

The chicken and vegetables reheat surprisingly well, especially if you add a splash of water to the container and cover it loosely with foil. I've also shredded the leftover chicken, mixed it with the roasted vegetables, and stuffed it into warm flatbreads with a dollop of yogurt and a handful of salad leaves. It makes a brilliant next-day lunch, and the flavors deepen overnight as the spices settle into everything.

How to Adjust the Heat

If you love heat, add a pinch of chili flakes or a few slices of fresh red chili when you toss the vegetables. If you're cooking for someone with a milder palate, swap the piri-piri for a blend of smoked paprika, garlic powder, and a squeeze of lemon juice. You'll lose some of the signature brightness, but you'll still get a deeply flavored traybake that everyone can enjoy.

Serving Suggestions and Swaps

I've made this with butternut squash instead of sweet potatoes when I've had a whole one sitting on the counter, and it worked beautifully. Just peel and cube it the same way, and expect it to take the full forty minutes to soften. Sometimes I'll throw in a handful of baby spinach or rocket in the last minute, letting it wilt in the residual heat, or I'll serve it over couscous or quinoa if I want to stretch it further.

  • Serve with steamed green beans or a crisp gem lettuce salad dressed simply with lemon and olive oil.
  • Pair with a chilled Sauvignon Blanc, a light lager, or sparkling water with a wedge of lime.
  • If you have any leftover pan juices, save them and toss with pasta or drizzle over roasted potatoes the next day.
Tender chicken and crispy sweet potatoes are garnished with fresh herbs and lemon wedges on a rustic table. Pin It
Tender chicken and crispy sweet potatoes are garnished with fresh herbs and lemon wedges on a rustic table. | pecanpan.com

This traybake has become my proof that good food doesn't have to be complicated. It just has to taste like you meant it.

Questions & Answers

Can I use chicken breasts instead of thighs?

Yes, you can use boneless chicken breasts, but reduce the cooking time to 25-30 minutes total to prevent them from drying out. Thighs remain juicier due to their higher fat content.

What can I substitute for piri-piri seasoning?

Use a combination of smoked paprika, cayenne pepper, garlic powder, and dried oregano. Alternatively, try harissa paste or a Cajun seasoning blend for similar heat and depth.

How do I know when the chicken is fully cooked?

Pierce the thickest part of the thigh with a knife - the juices should run clear, not pink. Alternatively, use a meat thermometer; the internal temperature should reach 75°C (165°F).

Can this traybake be prepared in advance?

You can marinate the chicken and chop the vegetables up to 24 hours ahead. Store separately in the refrigerator, then assemble and roast when ready to cook.

What side dishes pair well with this traybake?

Serve with couscous, quinoa, or crusty bread to soak up the flavorful juices. A crisp green salad, tzatziki, or garlic yogurt also complement the bold piri-piri flavors beautifully.

Can I freeze leftovers?

Yes, cool completely and store in an airtight container for up to 3 months. Reheat thoroughly in the oven at 180°C until piping hot throughout, approximately 20-25 minutes from frozen.

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Chicken and Sweet Potato Traybake

Juicy piri-piri chicken with sweet potatoes and colorful vegetables roasted to perfection in one pan.

Prep Time
15 minutes
Time to Cook
40 minutes
Overall Time
55 minutes
Created by Anthony Hughes


Skill Level Easy

Cuisine Mediterranean-Inspired

Makes 4 Portions

Dietary Details No Dairy, No Gluten

What You Need

Chicken

01 4 bone-in, skin-on chicken thighs
02 2 tablespoons piri-piri seasoning or paste
03 1 tablespoon olive oil
04 1 teaspoon smoked paprika
05 1/2 teaspoon salt
06 1/4 teaspoon black pepper

Vegetables

01 2 medium sweet potatoes, peeled and cut into 3/4 inch chunks
02 1 large red onion, cut into thick wedges
03 1 red bell pepper, deseeded and cut into chunks
04 1 yellow bell pepper, deseeded and cut into chunks
05 2 cloves garlic, finely sliced
06 1 cup cherry tomatoes, halved

Garnish

01 Fresh coriander or parsley, chopped (optional)
02 Lemon wedges, to serve

How-To

Step 01

Preheat oven: Preheat the oven to 400°F (200°C) with convection at 356°F (180°C fan).

Step 02

Season chicken: In a large bowl, toss chicken thighs with piri-piri seasoning, olive oil, smoked paprika, salt, and pepper until thoroughly coated.

Step 03

Arrange vegetables: Place sweet potatoes, red onion, and bell peppers on a large baking tray. Drizzle lightly with olive oil, scatter sliced garlic over top, toss to combine, and spread in a single layer.

Step 04

Add chicken: Nestle seasoned chicken thighs among the vegetables with skin-side facing up.

Step 05

Initial roast: Roast in the oven for 30 minutes until chicken begins to brown.

Step 06

Add tomatoes and finish: Add cherry tomatoes to the tray and return to the oven for an additional 10 minutes, or until chicken juices run clear and vegetables are golden and tender.

Step 07

Finish and serve: Garnish with fresh coriander or parsley and serve with lemon wedges.

Tools You Need

  • Large baking tray
  • Large mixing bowl
  • Sharp knife
  • Cutting board

Allergy Notice

Review each ingredient, check for allergens, and talk to a professional if needed.
  • Piri-piri seasoning may contain mustard or gluten traces depending on brand; verify labels if sensitive to these allergens.

Nutrition Details (each serving)

Nutritional info is for reference and isn’t medical guidance.
  • Kcal: 410
  • Fats: 18 g
  • Carbohydrates: 32 g
  • Proteins: 29 g

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