In a large mixing bowl, whisk together the flour, brown sugar, and pumpkin pie spice.
In a separate mixing bowl, whisk together the milk, sweetpotato puree, eggs, oil, and vanilla extract.
Pour the wet ingredients into the dry ingredients and whisk until well combined.
Heat a large skillet over medium heat. Lightly spray the pan with cooking spray and pour about 1/2 cup of batter into the center. Tilt the pan to spread the batter into a thin crepe.
Cook for 1 minute, then flip and cook for another 30 seconds.
Remove from the pan and let cool slightly.
For the filling: In a bowl, mix together the Greek yogurt, maple syrup, and sweet potato puree.
Spoon a few dollops of the filling into the center of each crepe, add some fruit, and roll up.
Dust with powdered sugar and serve.