Preheat oven to 350°. Grease a 9x5 inch loaf pan, set aside.
In a large bowl, mix the shredded zucchini, green onions, eggs, sour cream, and butter together. Add in shredded cheese. Mix until well combined.
Mix in the flour, baking powder, baking soda and salt. Mix until well combined, and until the mixture gets wet and sticky.
Pour batter in greased loaf pan.
Bake in preheated oven for 50-70 minutes, or until a toothpick inserted in the middle comes out clean.
Let cool a bit before removing loaf from pan.
Slice and enjoy!