Preheat the oven to 325 degrees F/163 degrees C. Line a 12-cup muffin tin with parchment liners. If you do not have parchment liners, generously coat the cups with oil.
To prepare the wet ingredients, place coconut oil, maple syrup, eggs, pumpkin puree, almond milk, and vanilla extract in a large bowl. Whisk until thoroughly combined. Set aside.
To prepare the dry ingredients, whisk together whole wheat flour, kosher salt, baking soda, pumpkin pie spice and oats in a separate large mixing bowl until fully incorporated.
Fold the dry ingredients into the wet ingredients and mix just until combined. Do not overmix.
Fold in the raisins.
Scoop the batter into each muffin cup, about ⅔ full. If preferred, top with the pumpkin seeds or chocolate chips.
Bake for 25-27 minutes until a toothpick, when inserted, comes out clean.
Let cool for 10 minutes before removing from the pan onto a wire rack to cool.