This vibrant dinner bake features succulent pieces of chicken breast smothered in a luxurious sauce of basil pesto and heavy cream. Topped with a blend of shredded mozzarella and nutty parmesan, the casserole bakes until the cheese forms a golden, bubbling crust over the herbaceous green sauce. It offers a high-protein, low-carb meal with a rich, velvety texture and the deep, aromatic flavors of fresh basil, garlic, and aged cheese.