Steps
1. Preheat the oven to 350°F (180°C).
2. In a bowl, mix the cooked chicken, cheese, corn, and cucumbers.
3. Place the lettuce leaves on a baking tray.
4. Spoon the chicken and cheese mixture into the lettuce cups.
5. Bake in the oven for 10-12 minutes until the cheese is melted.
6. Serve hot and enjoy!