Fattoush in Centaurus-Islamabad.
Their Shawerma is the closest to the one you'll get in KSA.
IIRC,it was a Rs 330 Deal with some fries and a drink.
I tried it in March this year.Will definitely give it a try again.
It was a bit dry.
Also for the ones living in Lahore. I've found a vendor which sells good shawerma.Not really authentic but it's better than having that spice filled crap.
It was hygienic.Uses mayo-garlic instead of red-chilli sauce,but the sauce isn't thick enough.
It's a little spicy;not that much tbh.It only lacks the thin bread and some fries.
He's located near Wapda town roundabout on PIA main road.Just on the parking spot of Ishtiaq Sons.
Smaller one is for Rs 60 and larger one for 100.There isn't much of a difference between them,just more chicken.
He also sells some paratha shawerma. Haven't tried it yet. He'll only sell those if you order more than 3.