Easy Vegetarian Spinach Lasagna

Instructions

• Preheat oven to 400 degrees F (200 degrees C). Spray a 1 1/2-quart casserole dish with cooking spray.
• Bring a large pot of lightly salted water to a boil. Cook lasagna in the boiling water, stirring occasionally, until cooked through but firm to the bite, about 8 minutes. Drain.
• Place a steamer insert into a saucepan and fill with water to just below the bottom of the steamer. Bring water to a boil. Add spinach, cover, and steam until tender, 2 to 6 minutes. Drain spinach.
• Mix spinach, ricotta cheese, 1/2 cup mozzarella cheese, egg, nutmeg, basil, salt, and black pepper in a bowl until thoroughly combined.
• Spread 1/4 cup pasta sauce on the bottom of the prepared casserole dish; top with 3 lasagna noodles, 1/2 of the ricotta mixture, and 1/4 cup pasta sauce. Repeat layers of 3 more noodles, 1/2 cup ricotta mixture, and 1/4 cup pasta sauce. End with remaining 3 lasagna noodles and 1/4 cup pasta sauce. Sprinkle 1/2 cup mozzarella cheese and Parmesan cheese on top. Cover casserole with aluminum foil.
• Bake in the preheated oven for 25 minutes. Uncover casserole and continue baking until lasagna is bubbling and lightly browned, about 25 more minutes. Let lasagna stand 5 minutes before serving.