These Cucumber Tuna Bites are light, refreshing, and protein-packed—perfect as a midday pick-me-up, pre-workout snack, or healthy party appetizer. Creamy tuna salad sits on crisp cucumber slices and is topped with finely chopped red onion for a satisfying bite that’s full of flavor and crunch without the carbs.
1 can tuna (in water or olive oil), drained
1 tablespoon mayonnaise
1 teaspoon Dijon or yellow mustard
Salt and pepper to taste
1/4 red onion, finely chopped
1 cucumber, sliced into thick rounds
In a bowl, mix tuna, mayo, mustard, salt, and pepper until well combined.
Slice cucumber into thick rounds and place on a serving plate.
Spoon tuna mixture onto each cucumber slice.
Top with a sprinkle of finely chopped red onion.
Serve immediately or chill for later.