Place pork mince into a the bowl of food processor along with the fish sauce, red curry paste, coriander, kaffir lime, sugar, egg and salt. Process until smooth then stir in the sliced green beans.
Divide the mixture into 18 portions. Roll each portion into a ball then flatten into a 5cm disc shape. If not cooking right away, cover and chill until required. They can be chilled for up to 24 hours.
Heat enough oil in a large non-stick frying pan to cover the base. Cook patties, in batches, for 2-3 minutes on each side or until golden brown and cooked through. Drain on paper towel before serving the cakes with the Cucumber Dipping Sauce.