This white cheddar mac and cheese can absolutely be baked and makes a delicious casserole. Cook as directed, then transfer the prepared mac and cheese to a casserole or baking dish. Top with broken potato chips or breadcrumbs and bake at 350 degrees F / 180 degrees C until golden and bubbly. It’s perfect for making ahead and can be refrigerated in the covered baking dish for a few days for easy meal prep.