I am not a nutitinaist per say but I have always been a huge advocate of healthy eating.
Have you ever looked into the protein shakes that the body builders use?
Raw unsalted nuts of all kinds
beans! Kydney bean salads, etc
oatmeal
whole grains whenever you can
eggs...any way you like to eat them. You can keep them boiled on hand and just munch when the urge hits you
Carrots are filled with great nutrition