Cut the 4 chicken breast fillets into fine strips. Make a marinade by combining 4 tablespoons honey, 2 tablespoons rice vinegar, 2 tablespoons soy sauce, and 4 tablespoons sesame oil. Stir the marinade into the chicken strips, cover, and refrigerate for 1 to 2 hours.
Cut the 2 carrots into fine strips and set aside. Peel half a cucumber, cut it lengthwise in half, remove the core, and cut into fine crescent-shaped slices. Wash the 1 small iceberg lettuce and cut into small pieces. Cut the 4 spring onions into thin rings. Place the lettuce, cucumber, and spring onions in a bowl.
Make a dressing by whisking together 4 tablespoons rapeseed oil, the juice from 1 lime, 1 teaspoon fresh coriander, and 1 teaspoon chilli. Mix the dressing into the salad.
Heat a wok over high heat. Add the carrots and cook for 2 to 3 minutes until they still have some crunch. Pour in 5 tablespoons mirin to deglaze the wok, stirring constantly. Simmer for 1 minute while stirring, then add the carrots and mirin mixture to the salad.
In the same wok over medium heat, sauté 1 tablespoon mashed ginger and 1 garlic clove (minced) for about 1 minute until fragrant. Add the marinated chicken with all its marinade and stir-fry over medium-high heat for about 10 minutes, stirring frequently, until the chicken is cooked through (internal temperature 74°C / 165°F).
Divide the salad among serving plates, top with the fried chicken and its sauce, and serve immediately.