Grate zucchini either by hand or in a food processor with a grating attachment (peeling is optional depending on how tough the peel is). Place into a huge bowl and set aside.
Process walnuts in an empty food processor. Process into a fine meal.
Add dates, cinnamon and vanilla to nuts in food processor and process again until well mixed.
Remove mixture from food processor and add it to the big bowl that contains the zucchini. Combine with spoon or hands (mixture will appear dry but will moisture as you mix, do not add any liquids).
Stir in by hand raisins, coconut and psyllium husk.
Form into 10-11 loaves. Place on parchment paper.
Dehydrate on high for one hour. Reduce to 110 degrees for another five hours or until desired consistency is reached.
Store in refrigerator.
Taken from Rawtarian.