Preheat oven to 350F and line 8 muffin cups with paper liners.
Make the batter:
In a food processor, combine flax meal, walnuts, and coconut flour until it resembles coarse sand. Add baking soda, salt, and cinnamon; pulse a few times to combine. Add raisins and pulse, until they are chopped and incorporated into mixture (you are not trying to make a paste, just a coarse dough of sorts).
Add eggs and melted coconut oil or butter and pulse a few times to incorporate. Fold in grated carrot just to combine. Spoon in about ¼ cup of muffin batter into prepared muffin cups.
Bake:
Bake for 22 minutes, or until a toothpick comes out clean when inserted in the middle. Allow muffins to fully cool before eating them.