You should try sweet potatoes. They are real easy. You take one and put it in a glass of water so the top sticks out. Keep an eye on it and you will soon see it sprout out of the various eyes. When they grow little roots you carefully take them off and plant them.
Just one per plant. Onions are new to me and I thought I'd try using plants, it's just a bit easier. I planted some onion plants from a local supplier here last year and they didn't do well. It was a dry season and the plants weren't the easiest to grow. So this year I changed suppliers and ordered 3 different types of onion. http://tinyurl.com/jcfj5 You can start them from seed, maybe next year.
The 1st of the 06 peas made it onto the dinner plate last evening along with a great heaping bowl of fresh lettuce. I would have taken photos but everyone cleaned their plate before I could reach for the camera. The full crop of early peas will be in full picking this weekend....where's the butter?