Preheat oven to 375°. Slice potatoes with skin on, in half chunks. Drizzle some of the oil then sprinkle with garlic powder, dried Italian seasoning, salt and pepper. Mix everything together in a sheet pan. Put it in the oven to cook for 12-15 minutes or at until fork-tender.
In a bowl, combine the rest of the vegetables. Drizzle the remaining oil then sprinkle with garlic powder, dried Italian seasoning, salt and pepper. Stir everything together. Set it aside.
Once the potatoes have roasted for 12 minutes, place the other veggies on the other side of pan. Put it back in the oven to continue cooking for 5 minutes.