1.Heat a wok or large saucepan over moderate heat. Add oil, swirling to coat surface. Add paste; cook and stir for 1-2 minutes or until fragrant. Add wine and coconut milk. Bring to the boil.
2.Reduce heat and simmer, uncovered for 5 minutes. Add fish sauce and sugar, then cook for 2 minutes.
3.Add mussels; cover and cook tor 5-8 minutes or until shells open.
4.Add beans during the last 2 minutes of cooking. Remove and discard unopened mussels. Add time juice and coriander.
5.Divide mussels and broth among serving bowls, then top with tomato. Serve with crusty bread and lime wedges.
Pull ‘beard’ down towards mussel’s hinge to remove.