Turkey Zucchini Burgers with Caramelized Onions, Apples and Brie

1. Heat a skillet over medium-high heat. Add the olive oil and onions and cook, stirring constantly, for about 5 minutes or until the onions begin to soften.
2. Reduce the heat to medium and continue to cook for 10 minutes.
3. Heat a large skillet or grill to medium heat for cooking the burgers.
4. Prepare the burgers by mixing the turkey, shredded zucchini, garlic powder, onion powder, salt and pepper in a large bowl. Form into 5 patties.
5. Add the apples to the onion mixture and continue cooking for 10 additional minutes.
6. While the onions and apples continue cooking, spray the large skillet (or, if using a grill, spray the burgers) with a little cooking spray. Reduce the heat to medium-low and cook the burgers for about 5 minutes on each side, until no longer pink in the center, or a minimum temperature of 165°F.
7. Turn off the heat for the burgers, top with the brie cheese and cover the skillet to allow cheese to melt.
8. Turn off the heat for the onion and apple mixture and stir in the maple syrup.
9. Assemble the burgers on the buns and serve.