This Mariner's Lasagna is a comforting twist on the classic Italian favorite, swapping meat for delicate cod fillets. The dish features a robust sauce made from simmered tomatoes, mushrooms, and aromatic vegetables like onion, celery, and garlic. The fish is gently poached to ensure it stays moist and flaky before being layered with tender pasta noodles and melted mozzarella cheese. It offers a satisfying, home-style flavor profile that is both rich and inviting. Perfect for a weeknight dinner or a casual family meal, this recipe brings together simple pantry staples to create a dish that feels special yet easy to prepare. The combination of the savory tomato base and the mild white fish creates a balanced meal that appeals to seafood lovers and pasta fans alike.