Preheat your oven to 350° F (175° C). Line a muffin pan with liners.
Mix together the dry ingredients (flour, baking soda, baking powder, cinnamon, and salt).
Add the pumpkin puree, eggs, honey, and melted butter. Mix just until combined. Gently fold in the chocolate chips or nuts, if using.
Pour the batter into the muffin pan. Depending on the size of your muffins cups, bake for 15-20 minutes, until just beginning to brown.
Freeze leftovers for school lunches or a quick snack.