Maple Dijon Sheet Pan Chicken Thighs with Vegetables

The Maple Dijon Sauce Ties the Whole Pan Together

The maple Dijon sauce is what makes this feel like more than just chicken and vegetables roasted on a sheet pan. It brings all of the flavors together without making the dinner feel overly sweet.

• It hits sweet, tangy, and savory. Maple syrup adds sweetness, Dijon brings some sharpness, apple cider vinegar adds acidity, and fresh rosemary gives the sauce a warm, herby flavor.
• The sauce gets used in stages. Some coats the chicken and vegetables before roasting, some is used for basting, and a little stays separate for spooning over everything at the end.
• The vegetables get just as much flavor as the chicken. The Brussels sprouts, red onion, and sweet potatoes all get coated too, so nothing on the pan feels like an afterthought.
• A little extra sauce at the end makes a difference. Reserve some sauce before it ever touches the raw chicken so you have fresh sauce ready for serving.

Ingredients Worth Talking About

All other ingredients and measurements can be found in the recipe card towards the bottom of this post. 

• Boneless, skinless chicken thighs: I like thighs here because they stay juicy while the vegetables roast and can handle the higher oven temperature without drying out as quickly as chicken breasts.
• Sweet potatoes: Cut them into evenly sized cubes so they cook at the same rate. They get a 10-minute head since they take longer to soften than the chicken and Brussels sprouts. Cubed butternut squash is a good seasonal swap.
• Brussels sprouts: Halve smaller sprouts and quarter any really large ones so they roast evenly. The cut sides get nicely browned around the edges and soak up plenty of the sauce. Broccoli or cauliflower can work instead.
• Pure maple syrup: This gives the sauce its sweetness and helps everything caramelize in the oven.
• Dijon mustard: Dijon balances the maple syrup and gives the sauce its sharp, tangy flavor. I wouldn’t swap it for yellow mustard here.
• Apple cider vinegar: Just enough acidity keeps the sauce from being too sweet and works especially well with the sweet potatoes and Brussels sprouts.
• Fresh rosemary: Rosemary adds a warm, savory flavor that works really well with the maple and Dijon. Chop it finely so you get a little in every bite. You could also substitute with fresh thyme.

How to Make Maple Dijon Sheet Pan Chicken Thighs with Vegetables

1. Make the maple Dijon sauce: Whisk everything together for the sauce, then reserve the portion you’ll use for basting and serving before any sauce touches the raw chicken.
2. Give the sweet potatoes a head start: Toss them with oil, salt, and pepper, then roast for 10 minutes so they have time to start softening before the rest of the pan goes in.

3. Coat the chicken and vegetables: Toss the chicken thighs, Brussels sprouts, red onion, salt, and pepper with the remaining sauce until everything is well coated.
4. Add everything to the sheet pan: Toss the partially roasted sweet potatoes with a little more sauce, then arrange the chicken and vegetables in a single layer.
5. Roast until browned and cooked through: Bake for 20-25 minutes, brushing the chicken with the sauce halfway through. The chicken should reach 165°F, and the vegetables should be tender and browned around the edges.
6. Finish with the reserved sauce: Let the chicken rest for 5 minutes, then spoon the reserved (untouched) sauce over the chicken and vegetables.

A Few Things That Make a Big Difference

• Give everything enough room. Spread the chicken and vegetables out in a single layer so they roast instead of steam. If the pan feels crowded, use a second sheet pan.
• Keep the sweet potato pieces consistent. Similar-sized cubes are much more likely to become tender at the same time.
• Cut large Brussels sprouts smaller. Halve average-size sprouts and quarter the really big ones so they cook through and brown around the edges.
• Use a thermometer to check for doneness. Start checking the chicken around the 20-minute mark. The thickest part should reach 165°F.
• Watch closely if you broil at the end. The maple syrup helps everything caramelize, but it can also darken quickly under the broiler. One or two minutes is usually plenty.
• Don’t skip the finishing sauce. The last spoonful of maple Dijon sauce brings some sweet, tangy maple Dijon flavor back to the surface after roasting.

Make Ahead and Storage

You can prep most of this recipe ahead of time, which makes it especially easy for busy nights.

• Make the sauce ahead: Whisk together the maple Dijon sauce and refrigerate it in a sealed container for up to 3 days.
• Prep the vegetables: Cut the sweet potatoes, Brussels sprouts, and red onion up to a day ahead and store them separately in the refrigerator.
• For meal prep: Roast the full recipe, then store in containers. Keep the reserved finishing sauce separate so you can add it after reheating.
• Store leftovers: Refrigerate in an airtight container for up to 4 days.
• Reheat: I prefer the oven or air fryer because they brings some of the browned edges back, but the microwave works well for individual portions too.
• Freezing: The chicken freezes well, but the roasted vegetables will soften once thawed. If you’re freezing leftovers, I’d prioritize the chicken and make fresh vegetables when you’re ready to serve it again.