Place the Greek yogurt, pumpkin purée, maple syrup, vanilla extract, pumpkin pie spice, and 1/2 teaspoon ground cinnamon in a small mixing bowl.
Stir thoroughly until the ingredients are evenly incorporated and the yogurt mixture becomes smooth and creamy.
Just before serving, scatter the crumbled cinnamon graham cracker and chopped pecans over the pumpkin yogurt.
Finish with an additional light sprinkling of ground cinnamon and serve immediately.