1

Place noodles in a large heatproof bowl, pour over boiling water to cover and soak for 5 minutes or until softened. Drain and set aside.

2

Stir paste in a large saucepan over medium heat for 1-2 minutes until fragrant.

3

Add stock, bring to the boil, then reduce heat to medium-low, add beans and mushrooms and simmer for 1 minute. Add prawns and cook for a further 1-2 minutes until prawns are just cooked.

4

Place noodles in bowls and top with tomatoes. Pour over soup, garnish with coriander and serve with lime.