Preheat oven to 375˚Grease a 9x12-inch baking dish.

Trim visible fat and tendons from chicken, then cut each chicken breast lengthwise into 2 or 3 pieces.

Spread half the pesto over the bottom of the dish. Lay the chicken strips over the pesto, then spread the remaining pesto over the chicken.

Cover with aluminum foil and bake the chicken for 25 to 30 minutes or until the chicken is cooked through.

Remove the foil, sprinkle grated mozzarella cheese. Return the chicken to the oven without the foil and broil until cheese is golden and bubbling.