Preheat the oven to 425 degrees.

Line a large sheet pan with foil and spray with cooking spray. Set aside.

Empty seasoning mix into a shallow dish. Brush the chicken with half of the olive oil. Coat both sides of the chicken with the seasoning and place on the sheet pan.

Cut each of the zucchini in half lengthwise and scoop out the middle leaving 1/4 inch of the zucchini to form a "boat".

Place the zucchini on the sheet pan and brush with the remaining oil.

Bake for 15 minutes.

Remove the sheet pan from the oven and place the chicken on a cutting board. Cut each breast in half lengthwise and then slice into 1 inch pieces.

Place the chicken pieces in the zucchini boats. Top with the marinara sauce. Sprinkle with mozzarella cheese.

Return the sheet pan to the oven for 5 minutes.

Remove from oven and serve with garlic bread.