I recommend crops that are drought tolerant, especially perennials.
Trees and shrubs often fit that category. Our region is facing challenging water issues as time goes on, and even if you have a good water source, irrigation equipment gets expensive long term.
There are lots of varieties of fruit and nuts that I think could potentially do well there. Hazelnuts, some chestnuts, apples, plums, apricots, serviceberries, gooseberries, currants, and more could thrive there. You might consider planting some acreage into diverse agroforestry now and using the other acreage for faster crops. You can even grow things like rhubarb and lavender in between the trees and shrubs while the trees get established. The rhubarb will be able to grow in the shade too once the trees grow up