Preheat oven to 350. Thaw spinach and cook noodles

Once cooked, lay noodles on flat surface and allow to dry

Mix ricotta, Parmesan, egg, spinach, salt and pepper in bowl

Pour 1 cup of sauce in bottom of pan

Take cheese mixture and spread 1/3 cup of mix onto each noodle

Roll up each noodle and place seam side down in dish

Pour the rest of the sauce over the rolled noodles and top with mozzarella cheese

Cover with foil and bake for 35-45 min