Preheat oven to 350 degrees spray 1 8x4 loaf pan with nonstick spray
In a large bowl, combine the flour, pudding mix, baking soda and powder and salt.
In another bowl, whisk together the sugar, eggs, milk, oil, lemon juice and extract.
Stir into the dry ingredients until just moistened.
Fold in the zucchini, lemon zest
Pour batter into loaf pan.
Bake for 50-55 minutes or until a toothpick comes out clean.
Cool for 15 minutes before removing from pan to cool completely.
In small bowl, mix powdered sugar and lemon juice until well blended. Drizzle icing over cooled loaf. If you have icing left over just store in a container in the refrigerator.
Notes
To freeze: Let zucchini bread cool completely. Wrap in saran wrap and then aluminum foil and freeze.