I start by washing the cherry tomatoes thoroughly and gently slicing off the tops. Then, I scoop out the seeds and pulp using a small spoon or melon baller. This creates the perfect little cavity for the tuna filling.
Next, I drain the tuna and flake it into a mixing bowl. I add mayonnaise, lemon juice, chopped onion, capers, parsley, salt, and pepper. I mix everything until creamy and well combined.
Now comes the fun part! I carefully spoon the tuna mixture into each hollowed tomato. I like to overfill slightly for a fuller look. Once filled, I sprinkle a little extra parsley on top for presentation.
Although you can serve immediately, I prefer chilling the stuffed tomatoes in the fridge for 10-15 minutes. This helps the flavors meld together and makes them extra refreshing.