Vegans may have to stick with Kisses Knishes, but for the rest of us, there's always Hershels at the Reading Terminal Market for us half-ass vegetarians. My counter guy demanded that I eat it with mustard, although I don't even like the yellow stuff. He pumped a squirt of it onto my plate and dared me to argue. Kind of you, sir. I gave the condiment a shot on my spinach knish and surmised that it was already too late in life to change my tastes. Alas, I finished off the hearty jackpot of potato and spinach plain-style.