Hi there,
I'm missing pushcarts selling hotdogs!

Often, I missed standing around the stall and eating a good hot dog and not having to go to food court or anything for a quick lunch. Certainly not sitting in front of my desk.
May I suggest you having a sophisticated pushcart selling quick lunches like good sandwichs (not those pathetic super slim sandwichs with mimimal fillings inside) or hotdogs like those from vikign hotdogs and you can move around the CBD area?
of course, I didn't factor in how you gonna get there with your pushcart, rainy days and stuff. but anyway, just throwing some ideas...
Good Luck