Preheat your oven to 350 degrees and spray a 9 x 5 bread pan with non-stick spray.

Wrap the grated zucchini in a paper towel and squeeze out some of the liquid. You don’t need to dry it completely, just a tablespoon or so of liquid should be enough.

In a large bowl, mix together the flour, baking powder, baking soda, and salt.

In a small bowl, combine the milk and vinegar. Let it sit for a bit to curdle. Then, mix in the melted butter and egg.

Add the milk mixture to the dry ingredients, mixing just until combined. Be careful not to over mix to ensure the bread rises well.

Fold in the grated zucchini, cheddar, and chopped green onions, stirring lightly until just incorporated.

Pour the batter into the prepared pan and bake at 350 degrees for one hour.

Check if the bread is done by inserting a toothpick into the center; it should come out clean. Let the bread cool in the pan for 10 minutes before carefully removing it to cool on a wire rack.