Preheat: Heat oven to 350°F (175°C). Line or grease a 12-cup muffin tin.
Dry: Whisk WW pastry flour, cinnamon, ginger, rounded nutmeg, rounded clove, baking soda, baking powder, and salt.
Wet: Whisk egg, maple syrup, melted butter, pumpkin puree, and fat free greek yogurt until smooth.
Combine: Fold wet into dry until just combined (do not overmix).
Fill / bake: Divide among cups. Bake about 18-22 minutes at 350°F until a toothpick comes out clean. Cool briefly in pan, then on a rack.