Add the chicken, chipotle sauce and garlic to a large frypan over medium heat. Cook until the chicken is warmed through and the garlic is fragrant. Season with a pinch of salt.
Heat the tacos in a griddle pan or directly over a gas burner until slightly charred and warmed through.
Arrange the tacos on a large serving platter and fill with the chipotle chicken, diced avocado and diced red onion. Finish with a sprinkle of coriander & green chilli, a squeeze of lime and a drizzle of chipotle sauce.