I haven't planted crops out this year, maybe later on in the season, for various reasons.
So aside from the herbs, the only edible thing outside is some rocket that has sprung up from the stuff that went to seed last year. It's mighty powerful. But I'm pleased to have it. It is great popping out for a few leaves. (OK strawberries too, but they are small and green at present.)
My eco friend lent me 'Not on the Label' by Felicity Lawrence. Once you've read what they (supermarkets) do to salad in bags, you want it in the garden. Also, if you live on your own, you have to eat a whole bag in two days or it turns to mush. Yuck.