Since this comfort food classic serves 12, it's a perfect dish to serve at your next large gathering of family or friends.
Substitute 1 pkg. (10 oz.) frozen chopped spinach for the browned ground beef. Thaw spinach; squeeze out excess liquid. Prepare as directed, covering each ricotta layer with 1/3 of the spinach.
Adding water to the sauce helps cook the traditional noodles during baking, so you don't have to cook them beforehand. This saves you 15 to 20 minutes of prep time.