Preheat your oven to 425°F (220°C).
In a small bowl, mix together the onion powder, paprika, salt, garlic powder, and thyme.
Place the chicken thighs, butternut squash cubes, and halved Brussels sprouts on a large sheet pan. Sprinkle the spice mixture evenly over the chicken, squash, and Brussels sprouts.
Drizzle everything with 3 tbsp of olive oil. I also like to spray a light layer of olive oil over the top to make sure everything is coated.
Roast in the preheated oven for 20 minutes.
In a separate bowl, whisk together the honey and Dijon mustard to create the honey mustard glaze.
After 20 minutes, remove the sheet pan from the oven and brush the honey mustard glaze over the chicken thighs.
Return the sheet pan to the oven and continue roasting for another 10-15 minutes, or until the chicken is cooked through and the vegetables are tender and caramelized.
Once done, remove from the oven and let it rest for a few minutes before putting it away.
I add two chicken thighs into each container and just divide the veggies up.
Store in the fridge for up to 4 days!
Reheat in the microwave for 2 minutes to serve!