In a mixing bowl, combine 1 can of wild-caught tuna with 2 tablespoons of mayo, and add in finely chopped red or yellow onion. Sprinkle in a pinch of kosher salt, black pepper, and ½ teaspoon of paprika. Drizzle in 1 tablespoon of freshly squeezed lemon juice. Stir everything together until well blended and creamy.

Wash and dry 2 large cucumbers, and use a sharp knife to slice them into ½-inch thick rounds. Lay half of these cucumber rounds on a serving platter.

Take a dollop of your flavorful tuna mixture and spread it generously on each cucumber slice on the platter.

Using the remaining cucumber slices, gently place them on top of the tuna-covered rounds to form little sandwiches.

For easy serving, consider skewering each cucumber tuna sandwich with a toothpick.

These delectable cucumber tuna sandwiches are best enjoyed fresh. Serve them immediately, or refrigerate for up to 30 minutes before serving.