Preheat oven to 350F. Grease a cookie sheet or line with parchment paper and set aside. In a large bowl, combine pumpkin, maple, sugar, banana and non-dairy milk together. In a medium bowl, combine oats, flour, baking soda and pumpkin pie spice together and then transfer it into the wet mixture. Stir a few times then add raisins. Continue to mix until combined. It may look too dry initially, but keep stroking, it will incorporate perfectly. Drop spoonfuls on a greased cookie sheet and bake 10 to 15 minutes, or until firm to the touch and spring-like.