Spoon a thin layer of the meat sauce in the bottom of the slow cooker and spread evenly.
Add a layer of no-bake lasagna noodles, breaking them in half if needed to make them fit in the slow cooker.
Add another layer of the meat sauce on top of the noodles.
Add a layer of both mozzarella and cheddar cheese.
Add another layer of meat sauce, a layer of noodles, and another layer of meat sauce and then a final layer of cheese for the very top layer.
Cover and cook on LOW for 4 to 5 hours or until the noodles are tender.
To make this recipe gluten-free Barilla makes a great Gluten-Free Oven-Ready Lasagna Noodle. Use their product locator found on their website to see what stores carry these GF lasagna noodles or you can purchase them online at Amazon.com.