Creating Roasted Asparagus & Carrots is straightforward when you follow these steps:

1. Preheat the Oven: Start by preheating your oven to 425°F (220°C) to ensure an even roast.
2. Prepare the Vegetables: Wash asparagus and carrots thoroughly. Trim the tough ends from the asparagus and peel the carrots. Cut the carrots into even-sized sticks to ensure uniform cooking.
3. Toss with Olive Oil: In a large bowl, drizzle the olive oil over the vegetables. Toss them gently to coat them evenly.
4. Season the Vegetables: Sprinkle the kosher salt, black pepper, garlic powder, and thyme over the vegetables. Toss again to ensure they are well seasoned.
5. Spread on a Baking Sheet: Arrange the asparagus and carrots in a single layer on a baking sheet. This will help them roast rather than steam.
6. Roast in the Oven: Place the baking sheet in the preheated oven and roast the vegetables for 15-20 minutes or until they are tender and slightly caramelized. Turn them halfway through for even roasting.
7. Finish with Lemon Zest: If using lemon zest, sprinkle it on top right before serving for an extra burst of freshness.
8. Serve Hot: Remove from the oven and let cool for a minute before transferring to a serving dish.

With these simple steps, you’ll have a colorful and flavorful dish ready to impress!