where you live will be the main factor in what you can grow...

I'm no expert, but with that small of an area you are going to want to target highly productive stuff like potatos, tomatos, etc.

my experience with the various berries, asparagus, etc. is they don't give you that much bang for your buck - square foot wise and canteloupe & watermelon need a large area.

Knowing what I know now if I was restricted to that small of a patch I would have a row of onions on the southern most end of the garden then a row of potatos then bush green beans then tomatos staked in those round cages then northern most would be the Jerusalem Artichokes.

Get the area tilled up & then find out what nutrients it's short on. Fertilize heavily. And mulch with straw, grass & leaves as heavily in between the rows as possible.

Just my .02 - factor in the fact that I'm no expert & look for local advice first.