Preheat oven to 425℉. Line a rimmed baking sheet with parchment paper, silpat or lightly grease with oil.
Assemble: Add the potatoes, carrots, and chickpeas to the sheet pan, drizzle with 1 1/2 tablespoon olive oil and 3/4 of the spices, toss to coat. Arrange the potatoes flesh side down, this will help them get crispy edges.
Roast: Place in the oven for 20-25 minutes.
Add onion + asparagus: Carefully remove the pan from the oven, push the potato mixture to one side, add the onion and asparagus, add the remaining oil and herb/spice mix, toss to coat.
Continue roasting: Place sheet pan back in the oven and roast for 10-15 minutes more. Let cool for a few minutes before serving.