Prepare the lasagna noodles by boiling in salted water until al dente, about 8-10 minutes.

In a mixing bowl, combine chopped shrimp, crab meat, drained ricotta, half of the Alfredo sauce, and minced garlic; season with salt and pepper.

Spread a layer of Alfredo sauce in the baking dish, then lay out the cooked noodles. Spoon filling onto each noodle and roll tightly.

Pour remaining Alfredo sauce over the roll-ups and top with mozzarella and Parmesan cheese.

Bake at 375°F (190°C) covered for 20 minutes, then uncover and bake for another 10 minutes until bubbly and golden.

Let cool for 5 minutes, garnish with parsley, and serve.