Gather all ingredients. Preheat the oven to 425 degrees F (220 degrees C).
Mix mayonnaise and Parmesan cheese together in a medium bowl until well combined.
Arrange chicken breasts on a baking sheet. Evenly top with mayonnaise mixture, then sprinkle with bread crumbs to coat.
Bake in the preheated oven until golden on top and chicken is cooked through, about 20 minutes.
