A silky sweet potato puree tops a briny mix of cod, shrimp, and scallops in a bay-and-thyme béchamel, baked until bubbling and bronzed. By Mary-Frances Heck Published on March 10, 2026 Credit: Kristin Teig Total Time: 1 hr 30 mins Sweet potatoes bring a flavorful twist to classic fish pie, their natural sweetness balancing the briny mix of cod, shrimp, and scallops. Cooking the cod, shrimp, and scallops briefly in seasoned milk keeps them tender while also building flavor for the sauce.