Cook the Shrimp Scampi
In a large skillet, melt the butter over medium heat. Add the minced garlic and red pepper flakes (if using) and sauté until fragrant.
Add the shrimp and cook for 2–3 minutes per side, until pink and opaque. Remove the shrimp and set aside.
Pour the white wine into the skillet and simmer for 2–3 minutes, scraping up any browned bits. Stir in the lemon juice and parsley, then remove from heat.
Prepare the Garlic Butter Sauce
In a medium saucepan, melt the butter over medium heat. Add the minced garlic and sauté for 1 minute.
Whisk in the flour and cook for 1–2 minutes, until golden. Gradually whisk in the milk and cook until the sauce thickens.
Stir in the Parmesan cheese, season with salt and pepper, and set aside.
Prepare the Ricotta Mixture
In a mixing bowl, combine the ricotta cheese, egg, Parmesan cheese, Italian seasoning, and a pinch of salt and pepper. Mix until smooth.
Assemble the Lasagna
Preheat your oven to 375°F (190°C).
Spread a thin layer of garlic butter sauce on the bottom of a greased 9x13-inch baking dish.
Layer 3–4 lasagna noodles over the sauce, followed by a layer of the ricotta mixture, some cooked shrimp, and a sprinkle of mozzarella cheese.
Repeat the layers until all ingredients are used, finishing with a layer of noodles topped with sauce and mozzarella.
Bake
Cover the baking dish with foil and bake for 25 minutes. Remove the foil and bake for an additional 15 minutes, or until bubbly and golden.
Rest and Serve
Let the lasagna rest for 10 minutes before slicing. Garnish with fresh parsley and serve warm.