Preheat the oven to 375°F / 190°C and lightly grease a 9x13 inch baking dish with olive oil.
Toss the chicken pieces with garlic powder, onion powder, Italian herbs, and remaining olive oil in a large bowl.
Arrange the seasoned chicken in the prepared baking dish and pour the heavy cream evenly over the top.
Sprinkle the mozzarella and Parmesan cheese over the chicken and cream mixture.
Bake uncovered for 30 to 35 minutes until the chicken reaches 165°F / 74°C and the cheese is golden and bubbly.
Let the casserole rest for 5 minutes before serving to allow the sauce to thicken slightly.