Prep: Preheat the oven to 350°F degrees. Spray a 12-cup muffin tin with cooking spray. (You can also use paper liners or silicone liners if you’d like, but they will be very full!)
Dry Ingredients: In a large bowl, whisk together flour, baking soda, cinnamon, and salt. Set aside.
Wet Ingredients: In a small mixing bowl, whisk together the oil, honey, eggs, Greek yogurt, and vanilla.
Combine: Add the wet ingredients to the dry ones and stir just until it starts to come together (do not stir a lot here). Sprinkle the shredded zucchini and mini chocolate chips over the top. Stir until fully combined, being careful not to overmix. The batter will be thick.
Bake: Spoon at least 2 heaping tablespoons of batter into each hole, until each one is filled evenly (they will almost be filled to the top). Bake for about 20 minutes, or until a toothpick inserted in center of one comes out mostly clean. Place on a cooling rack and let cool for at least 10 minutes.
Freeze For Later: Bake muffins as directed in recipe. Let cool completely. Then place in a gallon-sized freezer bag or container, seal tightly, and freeze.
Prepare From Frozen: Thaw muffins in the refrigerator or warm in the microwave.