Bunch onions from the grocery store. (aka Green onions, Scallions, and Welsh onions.)
Until now I've had no luck growing onions, leeks, and garlic on my poor, heavy soil. I got a couple of bags of bunch onions and used the top 2/3 for tuna fish salad. I planted the bulbs in my garden. Those beauties survived all the troubles of this year's garden and grew carefree.
These are perennial so I think I'll add a few more to my onion patch. The picture shows another package ready to plant and my all purpose planting tool, a long handle mattock. Also in the picture: some Anasazi beans with the onions and raspberries behind the onions.