Preheat the oven to Gas Mark 6, 200C, 180C fan. Toss together the sweet potato with 1tbsp olive oil. Place in a roasting tin, season and cook for 20 mins. After 20 minutes, stir the potatoes and add the peppers. Cook for another 20 minutes, until the potatoes are golden and cooked through.
Place the couscous in a bowl and pour over boiling water to cover, then cover with clingfilm and leave for 5 minutes. Fluff with a fork and season.
Mix together 1tbsp olive oil and 2tbsp harissa, toss with the hot potatoes, peppers and couscous. Scatter over the feta to serve.
Why not try Roasted Stuffed Peppers.
Some products in this recipe are seasonal and so may not be available to buy online all year.