Heat oven to 200°C/180°C fan/gas 6. Mix the chicken in the oil with 1tsp of curry powder, season and mix well. Place the chicken on a foil-lined baking tray and cook for 20 minutes until cooked through. Allow to cool and then slice.
To make the dressing, get a bowl, add the remaining curry powder to the yogurt, Spicy Mango & Ginger Chutney, lime zest, lime juice and 1tsp of water.
Serve on top of the fresh lettuce leaves. Add the mango and chicken, generously drizzle the dressing and finally scatter red onion and sesame seeds over the top before serving.