Yesterday when I grabbed lunch at the Rafiqi cart on 6th Avenue and 19th Street, I noticed a new vendor selling sliced mangoes, and she seemed to be putting hot sauce on them. So of course I went straight there this afternoon and ordered on. For $3 you get an entire mango, sliced, and the option of hot sauce, lemon juice and/or salt. I had all three, and it was really good. Add a taco from Great Burrito (23rd and Sixth), and its a great lunch!