Weeknight sheet pan dinner.
Season potato and chicken with salt and pepper in a large bowl. In a small bowl mix together harissa, cumin, and oil, then pour over chicken and potatoes and toss to combine.
In a medium bowl, combine leeks, lemon zest, a pinch of salt and the remaining 1 1/2 tablespoons oil.
Heat oven to 425°. Put chicken and potatoes on a sheet pan and roast for 15 minutes. Turn potatoes, then scatter leeks on top. Roast chicken until golden and cooked through, another 30 minutes or so.
Prepare the yogurt mixture by combining yogurt and garlic and then seasoning to taste with salt and pepper.
To serve, add dollops of yogurt mixture to the pan, then scatter arugula and dill on top. Drizzle with olive oil and lemon juice.
By Alex Gibbons