Yeah, I've grown tomatoes, potatoes, peas, carrots, rocket, lettuce, onions and garlic. We also have a rather uncooperative plum tree, a blueberry bush, strawberry plant, chives, rosemary and thyme. 
Bit stuck this year, like you. Might do more salad greens and spring onions. Last time I tried spring onions it didn't really work out well. Stringy. 
I did use a mushroom growing kit and that was brilliant. The taste is AMAZING when they're freshly picked, will definitely do that again.