Yes, you can definitely roast the potatoes for golden brown and crispy potatoes.  To do so, pre heat oven to 400 F degrees.  Cut the potatoes into 1 inch pieces, then place on a baking sheet or sheet pan and drizzle with olive oil, salt, and either black pepper or harissa powder.  Toss to coat the potatoes, spread them out into a single layer, and roast for 20 minutes or until the potatoes are fork tender.  Allow the potatoes to cool and then add to the recipe according to the instructions.