In a large bowl, toss together cabbage, chicken, almonds, sesame seeds, basil and scallions. In a separate bowl, whisk together lemon juice, mayonnaise and ginger. Season with salt. Gradually whisk in oil until smooth. Pour most but not all of the dressing over the cabbage mixture and toss until lightly coated. Taste and add more dressing or salt as needed. Feel free to add more oil or mayo if desired. Serve immediately.