in a few weeks time , you could try some wheat, oats, barley or rye... or , all of them !!! If you did , just make sure you get winter types of the wheat , oats and barley . Oats and rye are almost un failable , sow them and they WILL grow . They would produce next year though , so you would be using your veg space if you are short on ground .
cheers
Russ