Preheat your oven to 375°F (190°C).

Cook the lasagna noodles according to the package instructions until al dente, then drain and drizzle with olive oil.

In a mixing bowl, combine ricotta cheese, chopped spinach, salt, and pepper.

Spread a generous layer of marinara sauce on the bottom of your baking dish.

Layer lasagna noodles, ricotta-spinach mixture, shredded chicken, and mozzarella cheese, repeating the layers.

Cut mozzarella cheese into ghost shapes and place them on top, adding sliced black olives as eyes.

Cover with foil and bake for 30 minutes, then uncover and bake for an additional 10-15 minutes.

Let the lasagna cool for about 10 minutes before slicing and serving.