01 -
Preheat oven to 375°F. Grease a 9x13 casserole dish or large baking dish. Arrange chicken breasts in an even layer in the dish.
02 -
In a small bowl, whisk together mayonnaise, ½ cup parmesan cheese, minced garlic, garlic salt, and pepper until well combined.
03 -
Spread the mayonnaise-cheese mixture evenly over the chicken breasts. Sprinkle the remaining 1 cup parmesan cheese over the top of the chicken.
04 -
Bake for 40 minutes, or until the internal temperature of the chicken reaches 165°F on an instant-read thermometer. Serve hot and garnish with fresh parsley if desired.