Preheat the oven to 200C fan.
Pop the potatoes into an oven proof dish, drizzle with olive oil, season with salt then bake for 15 minutes.
Take them out, then add the chorizo, and pop back into the oven for a further 10 minutes.
Take it out again then add the cherry tomatoes (whole), red onion, pepper, and half of the harissa paste. Give it a good mix to coat all the veggies.
Place the chicken thighs into a mixing bowl, then add the remaining harissa paste. Add some salt, then toss to coat the chicken in the harissa.
Nestle the chicken on top of the vegetables, then bake it for 30 minutes, or until the chicken is golden and cooked.
Dish it up and enjoy.