Preheat oven to 350°F (175°C). Spray a mini muffin tin with cooking spray.
Cut phyllo dough into squares large enough to fit the mini muffin cups. Layer 4-5 squares in each cup, brushing each with melted butter.
In a bowl, mix chopped pecans, brown sugar, and cinnamon.
Fill each phyllo cup with the pecan mixture and drizzle with a little caramel sauce.
Bake for 15-18 minutes or until golden and crisp.
Let cool slightly, then drizzle with more caramel before serving.