Cut the chicken into small chunks and season with salt and pepper.
In a frying pan, heat the olive oil and fry the seasoned chicken over a high heat for approximately 4 minutes until browned on all sides and cooked through.
Turn the heat down to medium and add the garlic so it softens but doesn’t burn.
Put a thin layer of the grated mozzarella on the tortillas, then spoon the other ingredients (cooked and raw) out evenly on top.
Finally, drizzle the dressing over the filling, roll it all up, tucking in the sides like a burrito and cook it in a dry, medium-hot frying pan for 2-3 minutes each side, using another pan to weigh it down.