There are a lot of vegetables to plant for the fall in California including the following beets carrots parsnip rutabaga globe onions brussells sprouts cabbages cauliflower fava beans carrots leaks turnip kohlrabi collards winter cabbage and early cabbages are a few different types. I'm sure that there are others that can be planted as well.
Try planting vegetables such as kale, chard, lettuce, Brussels sprouts, broccoli, asparagus, beets, leeks or carrots. This depends where in California, since climate changes drastically in parts of the state.