Doug990,
I've planted some fall foodplots in my woods here in Texas with good success. I see you have a boxblade, so you should be good to go.
What I did: I shortened my toplink as much as possible and dropped my boxblade rippers all the way down. This allowed me to tear up the soil very easily, two or three passes did fine. If you have large tree roots, you won't want to hang them. Obviously, a disk would be better, but I'm talking about using what you have. I planted oats, as well as one of the commercial food plot mixes last year. After broadcasting, I ran the boxblade over one more time to settle the seed, but I dont' know that this was mandatory.
I wasn't all that impressed with the mix, but it did come up. The oats worked great (much like rye or wheat would do) and the deer ate it big time. Best of all with the oats, I had around a half acre of food plot and the cost was way less than $10.
Now I'm not saying this is the best way, as I am no expert, but it worked well for me. Combined my daughter and I harvested three deer last year.