Cauliflower Shawarma

My first experience with shawarma was on vacation on the beach in Tel Aviv, Israel. Food vendors were selling falafel and shawarma sandwiches along with cold beverages on that hot August day. I ordered falafel because it's my favorite street food and my sister-in-law, who was my beach buddy that afternoon, ordered shawarma. I'd never had it before but the aroma was intoxicating and I asked for