Adapted from:



  1. Combine fish, mayonnaise, bell pepper, scallions, celery, capers, dill, parsley, mustard, lemon zest, lemon juice and pepper in a medium bowl; mix well. Cover and refrigerate until chilled, about 20 minutes.
  2. Serve on toast, bread, or crackers, topped with radishes and more dill and lemon zest, if desired.