Heat a wok on medium heat and spray well with 1 kcal spray.
Add the garlic and cook for a minute.
Add the prawns, salt, pepper, oregano and cook for about 3-4 minutes stirring throughout until the prawns are cooked.
Squeeze in the lemon juice, stir and leave aside.
Toast the lavash wraps for 1-2 minutes to heat them up.
Serve each wrap topped with half of the cooked prawns, cherry tomatoes, cucumber, grated carrot, tzatziki and crumbled feta.