Tomatoes, peas, carrots, beans of several varieties, lots of winter type squash, some zuchinni/summer squash, more tomatoes, peppers and more peppers. Pumpkins, watermelon, and canteloupe were in last year, but I dont think I will do the melons at the house this year and will concentrate on more vegetables rather than fruits.
I also have some herbs started along with some strawberries that are already producing for me.
All of this is in a very small yard with a big house and garage, and while its kind of a jungle at midsummer, it does produce well for me.
If you can, build up a small garden box a few feet by whatever feet you can get. Its nice to have it at home rather than the community places. Maybe a small box on wheels that you can roll to the fire escape, then back into your room as needed.
Good luck, RIpT