Slice your cucumber into ½-inch thick rounds—you'll need about 24 pieces. Pat them dry with paper towels because moisture is the enemy here. Lay them on a clean kitchen towel and let them sit while you prep everything else. This step is what keeps your smoked salmon cucumber bites from getting soggy.
In a small bowl, combine softened cream cheese, fresh dill, lemon zest, lemon juice, black pepper, and sea salt. Stir until it's smooth and spreadable, then taste it and adjust the seasoning. I always add a little extra salt because the cucumber rounds taste bland otherwise.
Grab a small spoon or butter knife and spread about ½ teaspoon of the cream cheese mixture onto each cucumber round. Don't go crazy with the amount—you want a thin, even layer. The key is leaving room for the toppings without everything falling apart when you pick them up.
Fold each smoked salmon slice in half or into thirds so it's bite-sized. Layer one piece of salmon on top of the cream cheese mixture. I always make sure it covers most of the cucumber so everything stays together nicely.
Top each bite with a small pinch of diced red onion and a few capers. Drizzle just the tiniest bit of honey on each one—trust me, that sweetness balances the salty salmon perfectly. Then finish with a light brush of extra virgin olive oil over the top.
Arrange your finished smoked salmon cucumber bites on a platter or serving board. You can make these up to 4 hours ahead and refrigerate them until guests arrive. Just pull them out about 15 minutes before serving so the cream cheese loses that icy texture.
Right before serving, give everything a final check for any that might've shifted around. Add a tiny garnish of extra fresh dill if you're feeling fancy. These elegant party appetizers disappear fast, so make extra if you're feeding a crowd.