A big handful of roughly chopped or torn herbs (mint, coriander, Thai basil)
To serve: cucumber slices, lettuce leaves, jasmine rice, extra herbs and lime.
Heat a large frying pan or wok over medium high heat. Once hot, add oil. Add lemongrass paste, garlic, sugar, and chilli. Stir fry for 2 minutes until fragrant. Add beef mince, breaking up lumps until all pieces are consistently broken down. Cook, stirring frequently for 5 minutes on medium high heat until fully cooked and no pink remains.
Stir in lime juice and fish sauce and cook for 2 minutes.
Remove from heat and stir in red onion, spring onion and chopped herbs.
Transfer to a platter and serve with cucumber slices, lettuce leaves, jasmine rice and extra herbs and lime wedges on the side.