Preheat Oven and Grease Dish:
Heat oven to 375°F (190°C). Coat a 9x13-inch baking dish lightly with grease.Mix Creamy Seasoning Blend:
In a medium bowl, combine mayonnaise (or yogurt), Parmesan, garlic powder, onion powder, Italian seasoning, paprika, salt, and pepper. Stir until uniform.Coat Chicken Breasts:
Arrange chicken breasts in the dish and evenly coat each with the creamy mixture.Bake Until Golden and Bubbly:
Bake uncovered for 25-30 minutes, until internal temp hits 165°F (75°C) and topping turns golden and bubbly.Garnish and Serve:
If desired, sprinkle with fresh parsley. Serve warm alongside rice, roasted vegetables, or a salad.