I have made a similar dish using smoked salmon (minus cajun spices/cheddar cheese). I peel an English cucumber, leaving small strips of the peel for color, then cut into 2 inch cups, scooping out the center nearly all the way down to the bottom with a melon baller. Put the salmon mix in a baggie or icing bag and squeeze into the cucumber. It's really pretty for a shower or gathering. I will usually put a sprig of dill on top as well. I'll have to try it with the cajun seasoning and cheddar cheese.