Fighting Cancer Cookbook - Royal Marsden Nutritious Recipes For During and After Cancer Treatment By Dr Clare Shaw PhD RD 

The book is divided into three: a detailed section by Dr Clare Shaw on diet and cancer and the problems you may face during treatment (such as loss of appetite; nausea; sore mouth; change of taste); recipes to cook during treatment; which are nutritionally beneficial and wholesome enough to keep you strong even if you can't eat too much; and a section of recipes for after treatment aimed at keeping you healthy. 

These recipes are designed to serve smaller portions and two people as well as families; and there are lots of tips about budgeting; leftovers and freezing. 
Dr Shaw wants to emphasise that you don't have to cook special; separate meals for one; the rest of the family can eat in the same way; saving on time and stress as well as encouraging a healthier diet for all.