Coming to the city with a firend and will moslty be eating inexpensive NY standouts, such as pastrami sandwich from Katz's, Papaya King, Pommes Frites, NY Noodletown, and bagels. At some point, we'll need something fresh and green. Anything come to mind for a really good salad or salad bar, not too expensive? We'll be touring throughout the city so most any location in Manhattan would be welcome. Thanks!