We're adding another small garden... 32'x8'.
First round of tilling shows me wonderful, hard black clay. Thank you north Texas.

Plan is to grow fruits/veggies.

What should I be adding? Sand? Peat? Landscape Mix?

Thanks!

check out the fruit, veg and herb forum

Next time don't till. Just apply mounds of mulch over top. That's all you need. The soil microbes will take care of the rest when you fertilize.