3 cups sliced zucchini (from about 3 to 4 small zucchini)
3/4 cup shredded mozzarella cheese
Chopped fresh parsley, for garnish
Spray nonstick cooking spray liberally inside a slow cooker crock. he bottom of the slow cooker should be covered with 1/2 cup marinara sauce, followed by a layer of noodles (you may have to cut or break noodles to fit in a single layer).
3/4 cup ricotta cheese, 1/4 cup green peas, 1 cup baby spinach leaves, 1 cup sliced zucchini, and 3/4 cup marinara sauce should all be spread over the noodles. Noodles, ricotta, vegetables, and sauce should be repeated twice more for a total of three layers. Noodles, remaining marinara sauce, and mozzarella cheese make up the final layer.
Cook for 3 hours on high or 5 to 6 hours on low while covering with a lid. Before serving, turn off the slow cooker and let the lasagna to settle for at least 30 minutes (this allows it to firm up).