Husband's just started treatment for Oesophageal cancer. What food should I cook for him?

My husband has just started treatment, consisting of chemo once a week for 4 weeks, and radiotherapy for four and a half weeks every day, excluding weekends, then surgery.

My problem is what to cook can anyone please help me. I do have a blender and food processor   

Can any of you good people reading this give me some ideas. Thankyou