Step 1

Preheat the oven to 375 degrees Fahrenheit.

Step 2

Place the chicken breast halves in a single layer in a baking dish.

Step 3

In a bowl, mix mayonnaise, parmesan cheese, salt, pepper, and garlic powder until combined.

Step 4

Spread the mayo/yogurt mixture evenly over the chicken. Bake for 45 minutes, or until the topping has browned and a meat thermometer reads 165 degrees Fahrenheit.