Transfer the potatoes to a bowl with the extra virgin olive oil, ancho chili powder, paprika, and cayenne powder. Taste and add more salt, if needed. Toss to coat. Return to the baking sheet in an even layer and roast for 20–30 minutes until golden brown.
5 Wipe out the bowl used to season the potatoes and add lime juice, cilantro, and green onions.
6 Carefully add the roasted potatoes to the bowl and toss to coat. Taste and season once more with salt and pepper if needed.