1. Heat oil in a wok over medium heat, then add red curry paste. Stir fry until aromatic.
2. Add pork and stir fry until nearly cooked (about 3-5 minutes). Then add string beans (or vegetables that you choose), fish sauce and sugar.
3. Stir fry until vegetables nearly cooked, then add sliced kaffir lime leaves, and stir fry for another 30 seconds.
4. Transfer to a serving dish. Garnish with coriander leaves and serve immediately with hot steamed rice.