As the title suggests he's getting more and more restricted on what he'll eat, basically:
Bread and butter
Eggs
Instant Noodles
Chicken (as long as it's a breaded or battered never been chicken thing)
Tinned ravioli
Chips
Tomato soup
Weetabix occasionally
The all the worse crap:
Crisps
Chocolate
Ice cream
I'm fighting a losing battle don't know what to do next