Step 1: Prepare the Alfredo Sauce
In a saucepan over medium heat, melt butter and sauté minced garlic until fragrant (about 1 minute).
Add heavy cream and stir continuously.
Slowly mix in Parmesan cheese, stirring until fully melted and smooth.
Season with Italian seasoning, salt, and black pepper. Remove from heat and set aside.
Step 2: Cook the Pasta Sheets
If using fresh pasta sheets, blanch them in boiling water for 30 seconds, then lay them out on a clean towel to dry.
If using no-boil lasagna noodles, ensure there’s enough sauce to coat them while baking.
Step 3: Assemble the Lasagna Layers
Preheat your oven to 375°F (190°C).
Spread a thin layer of Alfredo sauce in a 9x13-inch baking dish.
Layer 1: Add 3 lasagna sheets over the sauce.
Layer 2: Spread half the ricotta cheese, chicken/shrimp (if using), and Alfredo sauce evenly.
Layer 3: Sprinkle mozzarella and Parmesan cheese over the filling.
Repeat the layering process until all ingredients are used, finishing with a final layer of Alfredo sauce and cheese on top.
Step 4: Bake the Lasagna
Cover the dish with foil and bake for 30 minutes.
Remove the foil and bake for another 10-15 minutes, or until the cheese is golden and bubbly.
Step 5: Let It Rest Before Serving
Allow the lasagna to rest for 10 minutes before slicing. This helps the layers hold together.