1. Makes 2 Tacos for 1 Serving. Preheat oven to 180ºC (355ºF), fan-forced. Line a tray with parchment paper.
2. Spread grated cheese on the lined tray in two 10cm diameter circles, making sure the cheese completely fills the circle. Bake for 3 minutes, or until completely melted and golden at the edges. Remove from oven and allow to cool on the tray for 2 minutes.
3. Cook chicken breast. Shred chicken using fork once cooked and prepare other ingredients.
4. Using a spatula, remove the 'tacos' from the tray. You can leave them flat or, while warm, fold the taco over a pot handle to make it a hard taco shell.
5. Top with lettuce, chicken, herbs, tomato and yoghurt.
6. Grate over lime zest, a squeeze of lime and season with pepper (or chilli flakes).