1. Preheat oven to 400°F. Spray 8- or 9-inch pie pan with nonstick cooking spray.
2. Pour butter into pie pan. Sprinkle with brown sugar and maple syrup. Arrange peach slices in single layer on top in decorative circle. Sprinkle with pecans.
3. Place baking mix in medium bowl. Whisk together eggs, milk and vanilla in small bowl; stir into baking mix just until dry ingredients are moistened. Pour batter over peaches.
4. Bake 15 to 18 minutes or until lightly browned and toothpick inserted into center comes out clean. Cool 1 minute. Run knife around outer edge of pan. Invert pancake onto serving plate. Cut into 6 wedges. Serve immediately with additional maple syrup, if desired.