Any food crops that could grow in a desert provided that they get fertilizer and water
Even if you have unlimited water available to the plants you'd still have to worry about the high temperatures and light levels of these areas. In the hot periods I would look into any plant that uses c4 carbon fixation like millet, sorghum, corn, sugar cane... In the cooler periods maybe look into rotating to a cool season legume crop like the cowpea that would help fix nitrogen. Another really important thing to do would be to find cover crops that will hold down the soil and build up some life in the otherwise sterile sands of the desert.