Makes one 9-inch loaf.
Mix the flour, sugar, baking powder, baking soda, salt and ginger together thoroughly. In a medium-size bowl beat the eggs, then add the oil and the grated zucchini. Stir in the dry ingredients, orange peel and walnuts.
Scrape the batter into a buttered 9-inch bread pan and bake in a preheated 375° oven for 50 minutes. Let cool in the pan 5 minutes, then turn out onto a rack.