Method

1. Preheat the oven to 200°C/400°F/Gas Mark 6.
2. To make the tzatziki sauce, add all the ingredients to a bowl and stir to combine. This can be kept in the fridge until you are ready to serve.
3. To make the salsa, add all the ingredients to a bowl and stir to combine. Keep in the fridge until you are ready to serve. 
4. Place the pitta/flatbreads on a tray and place in the preheated oven for 5 minutes until warm. You can also heat these on a dry pan over a medium heat. Warm for 30 seconds on each side. 
5. While the pittas/flatbread are warming, add the lamb to a pan over a medium heat. Sauté for 5 minutes until warmed through.
6. To assemble, spread the pitta with some tzatziki sauce, add the lettuce, lamb, and tomato salsa.