Preheat oven to 350°
Coat four mini loaf pans or one standard loaf pan (8½ x 4½ x 2½ inches) with non-stick cooking spray.
Wash, remove pits, and peel both peaches, puree one peach in a blender or food processor until smooth, and dice the other peach into small cubes. You should have total of about ½ cup of pureed and ½-¾ cups of diced, depending on the size of your peaches.
In a large bowl, whisk together the sugar, salt, egg, pureed peaches, and butter until well combined. Add in the zucchini, vanilla, and yogurt and mix until incorporated.
Sift the flour into the wet mixture and stir until just combined. Gently fold in the blueberries and diced peaches. Do not over mix.
Pour the batter evenly into the prepared mini loaf pans (or into one standard loaf pan). Bake for 30-35 minutes or until a toothpick comes out clean. If using a standard loaf pan, increase cooking time to 45 minutes, or until a toothpick comes out clean.
Let cool before slicing or serving. Enjoy!