Using no-boil lasagna noodles decreases the prep time for homemade lasagna by at about 15 minutes total. If you use the no-boil variety you will need to add more liquid and cover the lasagna tightly until the end before you brown the cheesy top. 1. No-boil lasagna noodles are often thinner than regular lasagna noodles and are already partially cooked in a water bath before they were dried and packaged. 2. They don't require boiling, but they need additional liquid to reconstitute them during the baking process. Adding 1/4 cup of water to the sauce adds the extra liquid needed for the noodles to cook without making the lasagna dry. 3. Lasagnas that contain no-boil noodles should be kept tightly covered with a lid or foil during baking so the steam can help cook the noodles. Take off the cover during the last 5-10 minutes to brown the cheese layer.