Preheat
oven to 350 degrees. Butter or spray with vegetable oil 4 large loaf pans or
8 small.

Beat
the eggs until light. Add the sugar, mixing well. Add the oil, zucchini, and
vanilla and mix thoroughly.

Sift the dry ingredients. Add by the cupful to the egg
mixture. Stir until well blended. Add the nuts, lemon zest and walnut oil.
Spoon into the pans and bake for approximately 1 hour. Cool on racks.