This Japanese ginger and garlic chicken with smashed cucumber is a flavorful and refreshing dish. The chicken is marinated in a mixture of ginger, garlic, soy sauce, and mirin, giving it a delicious umami flavor. The smashed cucumber adds a crunchy texture and is seasoned with sesame oil and rice vinegar for a tangy kick. This dish is perfect for a light and healthy meal, and can be served with steamed rice or noodles.