Preheat the oven to 400°F (204°C) and spray or line a muffin pan.
In a medium bowl, whisk together the flour, cinnamon, baking soda, and salt until evenly combined.
In a separate bowl, whisk the mashed banana, melted coconut oil, egg, honey, and vanilla until smooth.
Fold the dry ingredients into the wet ingredients gently until just combined; avoid overmixing.
Stir in the mini dairy-free chocolate chips until evenly distributed.
Spoon the batter into 11 muffin cavities, filling each about two-thirds full.
Bake at 400°F for 5 minutes, then reduce the oven temperature to 375°F and bake an additional 12–14 minutes, or until a toothpick inserted into the center comes out clean.
Let the muffins cool completely in the pan before serving.