Slice the cucumber into 4 even segments. Taking a sharp knife score around the center of the cucumber and scoop out the seeds, being careful not to cut all the way through the cucumber.
Step 2
Add the avocado, mayonnaise, dill, lemon juice, salmon, salt and pepper to a mixing bowl. Mash together to combine, forming a chunky paste.
Step 3
To serve, divide the salmon mixture evenly between the hollow cucumber cups.