Make the Marinade: In a bowl, whisk together the avocado oil, Italian seasoning, garlic powder, onion powder, lemon juice, salt, and pepper.
Marinate the Chicken: Place your chicken thighs in a separate bowl. Pour half of the marinade over them, making sure they're nicely coated. Let them hang out for at least 15 minutes to soak up all those tasty flavours.
Coat the Veggies: While the chicken is marinating, grab your veggies (potatoes, onion, carrots, and broccoli) and toss them with the remaining marinade. You want them all evenly coated and ready to roast.
Prep the Sheet Prep: Line the sheet pan with parchment paper for easy clean-up, then arrange the marinated chicken and the veggies on top.
Cooking Time: Pop the pan into your preheated oven and let it roast for about 35-40 minutes. You want the chicken to be fully cooked (165°F on a meat thermometer) and the veggies to be tender and delicious. Give the veggies a quick stir once or twice while they cook to ensure they're roasting evenly.
Dinner’s Ready!: Once everything's cooked through and smelling amazing, take it out of the oven, and you're ready to serve up a delicious, wholesome meal.