In a small bowl, whisk together honey, Dijon mustard, olive oil, apple cider vinegar, garlic powder, paprika, salt, and pepper until well combined.
Place the chicken thighs in a large bowl and pour half of the honey mustard mixture over them. Toss to coat thoroughly, then let them marinate for at least 15 minutes.
While the chicken is marinating, prepare the vegetables. In another bowl, combine baby carrots, Brussels sprouts, and red onion. Drizzle with the remaining honey mustard mixture and toss to coat.
On a large sheet pan, arrange the marinated chicken in the center and surround it with the vegetables.
Bake in the preheated oven for 25-30 minutes, or until the chicken is cooked through and the veggies are tender and caramelized.
Remove from the oven and let it rest for 5 minutes before slicing the chicken.
Garnish with chopped fresh parsley before serving.
Notes
Marinate the chicken longer for more flavor if desired.
Keyword chicken, easy dinner, honey mustard, sheet pan