Step 1

Put the noodles and green beans in a heatproof bowl and pour over a kettle of freshly boiled water. Set aside for 3-5 minutes until the noodles and beans are just tender.

Step 2

In a separate large bowl, mix the chilli, garlic, fish sauce, sugar and lime juice. Add the prawns and toss to coat in the dressing.

Step 3

Drain the noodles and beans, then add to the prawns and dressing along with the courgette, tomatoes and mango. Toss again, then transfer to a serving plate. Scatter with coriander leaves and chopped peanuts, if you like, then serve with lime wedges for squeezing over.