Chop your onions, carrots, and potatoes into bite-sized pieces.
Add the vegetables into your baking pan and then top with the chicken thighs.
Season with Italian seasonings, garlic powder, salt and pepper (to taste). Drizzle with the olive oil.
Bake in the oven covered for 35 minutes, remove the cover and continue to bake for another 30-40 minutes until the chicken is golden brown and completely cooked through and the vegetables are all tender.