Mix all the ingredients thoroughly in a small bowl. Cover and refrigerate until needed.
Whisk all the ingredients in a medium bowl until blended.
For the duck poppers:Slice each duck breast, horizontally, into 3 slices. Cover the slices with plastic wrap and lightly pound until thin. Put 1 jalapeno pepper slice, 1 onion slice and 1 tablespoon Cajun cream cheese on 1 end of each slice.
Roll up and wrap in a piece of the bacon. Secure the roll with a toothpick to hold the bacon in place.
Add them to the zesty Italian dressing and marinate for 2 hours.
Preheat a grill pan or grill over medium heat.
Add the duck poppers and cook just until bacon is done!
Remove them from the grill, transfer to a serving platter and serve.