Preheat your oven to 400°F. Grease a cookie sheet. Let yourself become fully present in the kitchen.
Blend the Base:
Whisk flour, sugar, baking soda, salt, nutmeg, and cinnamon in a large bowl. Cut in shortening, beat in the egg, then mix in the zucchini and oats until smooth.
Bake:
Spoon drops of dough onto your sheet. Bake for 8-10 minutes, then let them cool completely.
Frost:
Cream the butter in a medium bowl. Beat in the milk, vanilla, and powdered sugar until completely smooth.
Finish:
Spread the frosting over the cooled cookies. Dust the tops with a little extra nutmeg, take a deep breath, and enjoy.