Photo of Hy-Mart Deli Falafel Sandwich by Kevin Weis/LAist You know what's great about the Valley? Nobody believes you when you tell them "the BEST falafel sandwich place in the city is in a strip mall on the corner of Lankershim and Vineland!" They just don't believe you. So you get that little, non-descript Middle Eastern deli all to yourself -- well, you and the legions of locals who know that this is the......