Combine the pickled mirliton, carrots, onions, and garlic, the parsley, Creole mustard, mayonnaise, and yellow mustard in a mixing bowl and toss. Add the salt, cayenne, and chopped onions and mix well.
Cover and refrigerate for 15 minutes before using. Will keep for at least 24 hours in an airtight container in the refrigerator.
Yield: 1 1/2 cups