Preheat oven to 350°F. Line a baking sheet with parchment paper.
Blend together softened butter, brown sugar, and granulated sugar until fluffy.
Add in pumpkin puree, egg, and vanilla extract until fully mixed (add the orange food coloring into this step if you choose to use it).
In a different bowl, whisk together the flour, baking soda, pumpkin pie spice, and salt.
Slowly add the dry ingredients to the wet ingredients until fully mixed.
Fold in the chocolate chips, mini marshmallows, and graham cracker pieces.
Place rounded scoops of the mixture onto the parchment paper using a spoon, space the scoops 2 inches apart.
Press some extra marshmallows, chocolate chips, and/or pieces of graham crackers into the top of each scoop.
Bake for 15 minutes or until the edges are golden brown.
Allow the cookies to cool completely.