Growing many fall crops here is a bit dicey. Kale and turnips always do well, and green onions. Baby lettuce greens might do ok, depends on when the soil temperatures cool down enough for germination. Broccoli struggles in the late summer and early fall heat, but if it makes it through that, will do ok.

Part of the reason I may have had trouble with fall lettuce is that my garden didn't get nearly as sun in the fall as in early spring. Our large pecan tree leafed out late, and also shed very late in the season.