Preheat oven to 425 degrees F.

Cut carrots lengthwise, then crosswise in half.

Place carrots in a large bowl.

Add parsnips to the bowl.

Mix Italian dressing, orange zest, and red pepper until blended in a separate bowl.

Drizzle the dressing mixture over the vegetables.

Toss the vegetables to evenly coat them with the dressing.

Spread the vegetables onto a rimmed baking sheet sprayed with cooking spray.

Bake for 20 minutes.

Add apples and parmesan cheese to the baking sheet.

Stir to combine the apples and cheese with the vegetables.

Bake for an additional 15 to 20 minutes, or until the vegetables and apples are tender.