That would be an ideal answer, but in all my searching on gardening topics, I've come up short.
Our zone 9 is a bit different than your zone 9 due to our warmer summer, but fall is brassica planting time: cabbage, kale, turnip, collard, mustard, etc. These plants germinate faster in hot weather and can put on some good growth before the cold weather slows them down. What you want to do with them for a forest garden is to get them to where you can harvest them continually through the winter. It's kind of hard to do that with a cabbage, but for all the others, you can continue to clip leaves up until they get ready to flower next spring. If you like you greens on the bitter side, you can also do the same with the various chicories.
I second mustard and kale, and any green-manure type plants you might want (I use mustard mostly as a green manure).
You can also plant some broad beans now, and autumn bulbs such as onions and garlic (and crocus, tulips or daffodils if you want those- not edible but pretty and they provide nectar earlier than most other things).
Been there. Done that. Went back for more. But this time, I took this tiny ad with me: