1. Preheat oven to 400°F. Spray 8- or 9-inch pie pan with nonstick cooking spray.
2. Pour butter into pie pan. Sprinkle on brown sugar and maple syrup. Place peach slices in single layer on top in a decorative circle. Sprinkle with pecans; set aside.
3. Whisk together eggs, milk and vanilla in medium bowl. Stir in baking mix until just combined. Pour batter over peaches. Bake 15 to 18 minutes until lightly browned and firm to the touch. Remove from oven. Let cool 1 minute. Run knife around outer edge. Invert pancake onto serving plate. Serve immediately with additional maple syrup, if desired.