This place is excellent for cheap “eat on the side of the road goodness”. Get a kick out of watching the Arab families come and go from the Grace Hotel across the street while scarfing down several shawarma sandwiches. Has been a standby of mine for almost 10 years. You can thank me later
Mahmoud's Shawarma
7 Sukhumvit Rd, Khwaeng Khlong Toei Nuea, Khet Watthana, Krung Thep Maha Nakhon 10110, Thailand
+66 86 078 2166
https://goo.gl/maps/PwXB7SJesa787LSC7
Nadimos is also excellent but none of the two locations in BKK are walking distance from Nana.