My friend has an autistic son, who she's introduced to and maintains a diet of solely: pizza, potato waffles, chicken nuggets, fish fingers, etc. He has almost no vegetables or fruit in his diet, and we are looking to change that. He is more than willing to try, but he hates strong flavours, or anything that is really juicy (tomatoes, oranges, etc). He really prefers plain food, and doesn't like sweet vegetables (like carrots). He also doesn't like food mixed in with other food, everything needs to be separate on the plate.
Does anyone have any ideas from their experience of this or similar experiences, for foods and meals to create?
I'm thinking of maybe one smoothie a day as well, to hide some veg, but again, would like it to taste pretty plain.
Thanks in advance!