Cook lasagna noodles as it says on the directions.
While the lasagna noddles are still cooking, thaw spinach in microwave as it says on the directions. Drain & squeeze dry with a paper towel
After about 8-10 minutes of cooking, dain the noodles till they are dry.
Spread 1½ tbsp of sauce over one side of each cooked lasagna noodle.
Evenly sprinkle ½ tbsp of grated Parmesan over sauce. Top each with equal amounts of thawed spinach and mozzarella cheese.
Roll up each lasagna noodle, loosely.
*OPTIONAL* spoon about ¼ cup of tomato sauce over a lasagna roll and microwave until sauce is warm and cheese inside is melted, about 1 minute. Sprinkle more grated Parmesan cheese on top and serve :)