Preheat your oven to 400°F (200°C) and lightly grease a baking dish with nonstick spray.
Season the chicken breasts on both sides with salt, pepper, and garlic powder. Let them sit for a few minutes to absorb the flavors.
Arrange the chicken breasts in the baking dish, then layer the sliced dill pickles evenly on top of each breast.
Generously sprinkle freshly grated Parmesan cheese over the pickles, covering each piece well.
Bake in the preheated oven for 25-30 minutes, or until the chicken reaches an internal temperature of 165°F (75°C) and the cheese is golden brown.
While the chicken bakes, combine the Greek yogurt and lemon juice in a small bowl to make a simple tangy sauce.
Remove the chicken from the oven and serve drizzled with the yogurt-lemon sauce for a refreshing finish.
