Tuna and Veggie Cucumber Boats Recipe

1 (5 ounce) can chunk light tuna in water

drained

¼ cup chopped carrot

¼ cup chopped celery

¼ cup chopped broccoli

3 tablespoons low-fat plain Greek-style yogurt

2 tablespoons diced red onion

1 tablespoon mayonnaise

2 cucumbers

halved lengthwise and seeded