Once your sauce and ricotta are ready, it’s time to build the lasagna.
Preheat the oven: Preheat your oven to 375°F (190°C). This gives you time to assemble the lasagna before baking.
Layering begins:
Base layer of sauce: Spread a thin layer of Alfredo sauce across the bottom of a 9x13-inch baking dish. This prevents the noodles from sticking and ensures even moisture throughout the lasagna.
Noodle layer: Lay 3-4 lasagna noodles over the sauce, depending on the size of your pan. If you’re using pre-cooked noodles, make sure they slightly overlap.
Chicken layer: Spread a portion of the shredded chicken evenly over the noodles.
Ricotta layer: Dollop a few spoonfuls of the ricotta mixture on top of the chicken, using a spatula to spread it evenly.
Spinach (optional): If you're adding spinach, layer it on top of the ricotta for a fresh, healthy twist.
Sauce layer: Drizzle Alfredo sauce over the ricotta and spinach, ensuring everything is well coated.
Repeat the layers: Continue this layering process—noodles, chicken, ricotta, spinach, and sauce—until you’ve used all your ingredients. The top layer should be noodles covered with Alfredo sauce and sprinkled generously with shredded mozzarella and Parmesan cheese.