01 - In a mixing bowl, gently combine ground turkey, finely chopped onion, minced garlic, chopped parsley, Dijon mustard, salt, and black pepper without overworking the mixture.
02 - Divide the mixture into four equal portions and shape each into a patty slightly larger than the bun diameter.
03 - Heat olive oil in a large skillet or grill pan over medium heat. Cook the patties for 5 to 6 minutes per side until golden brown and the internal temperature reaches 165°F.
04 - During the final two minutes of cooking, place Brie slices atop each patty, cover the pan or tent loosely with foil to facilitate melting.
05 - Toast the split burger buns until they achieve a golden hue.
06 - Layer arugula or baby spinach leaves on the bottom bun halves, then add the turkey patty with melted Brie. Spoon cranberry sauce evenly over each, finishing with the top bun.
07 - Present immediately while warm to enjoy optimal flavors and textures.