Preheat the oven to 180 C (350 F). In a roasting tin, place the sweet potatoes, onions, lemon zest, lemon juice, ras el hanout and salt. Toss to combine all the ingredients and transfer in the oven for 35 minutes or until soft and cooked through. Give the tin a good stir halfway through cooking.

Meanwhile, in a small bowl combine the feta, preserved lemon, mint and garlic. Use a fork to combine and place in the fridge until ready to assemble your msemen wraps.

To assemble, place some sweet potato chunks on a msemen, top with feta and pine nuts and roll to make a wrap. Serve with rocket, salad leaves, or chilli flakes if desired