Heat the oil in a small saucepan, add the chilli and garlic and cook for 1 minute. Remove from the heat and stir in the lime juice. Set dressing aside.
Place the noodles in a saucepan of boiling water and cook for 2 minutes or until tender. Drain, rinse under cold water and drain again. Combine with the chicken, cucumber, mint and dressing. Serves 4.