Whisk together flour, sugar, baking powder, baking soda, and salt until evenly distributed.
Add yogurt, applesauce, oil, and eggs. Whisk until just combined.
Stir in zucchini and orange zest.
Pour into prepared loaf pan until it is about 3/4 of the way full.
Bake for approximately 30-35 minutes or until a pick inserted in the center come out clean. Just want to add a disclaimer here. Some people have said this took longer to bake, so I might have written it down wrong when I wrote the recipe. I will check it next time I bake it, but make sure the pick inserted in the center comes out clean.
Allow to cool 10 minutes in the pan and then turn out onto a wire rack to finish cooling. If your bread is domed, make sure to set it back on its bottom so that it doesn't crack.
Stir together orange juice and confectioners' sugar until there are no lumps.
Drizzle over the bread and sprinkle with orange zest.
Recipe by From Calculu∫ to Cupcake∫ at https://www.fromcalculustocupcakes.com/orange-zucchini-bread/