Preheat & Prepare – Preheat oven to 350°F (175°C). Grease and flour an 8x4-inch loaf pan.
Mix Dry Ingredients – In a large bowl, whisk together flour, salt, baking powder, and baking soda.
Mix Wet Ingredients – In another bowl, combine sugar and lemon zest, stirring well. Add eggs, oil, and lemon juice, stirring until smooth.
Combine – Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Fold in grated zucchini.
Bake – Pour the batter into the prepared loaf pan and bake for 45-50 minutes, or until a toothpick inserted in the center comes out clean.
Cool – Let the bread rest in the pan for 10 minutes, then transfer to a wire rack to cool completely.
Prepare Glaze – In a small bowl, whisk together powdered sugar and lemon juice until smooth. Drizzle over cooled bread.
Serve & Enjoy – Slice and enjoy!