I can't speak to your local conditions. I'm sure things are different in the Midwest and what works for me may not work for you.
I highly recommend getting some herbs like sage, rosemary, thyme, chives and anything else you use regularly. (I have some chives on the windowsill and used them to spice up some butternut squash soup we had for dinner.)
In the summer I love to pick a zucchini, slice it up and grill it to go with dinner.
I also suggest that you look into square foot gardening. It espouses techniques that work well for small plots like raised beds.
Some garden pron: