Slow Cooker Lasagna

1 lb. Italian sausage
1 jar marinara sauce
8-oz mozzarella cheese, grated
bag of fresh spinach
12-oz ricotta cheese
1 box lasagna noodles

Brown the Italian sausage in a large skillet and drain the fat. In slow cooker spread thin layer of marinara sauce in bottom of crock. Sprinkle 1/4 of each the cooked sausage, spinach and mozzarella cheese. Break lasagna noodles to fit as a layer and spread 1/3 of the ricotta cheese on the uncooked noodles. Layer another 1/4 of the cooked sausage, spinach and mozzarella cheese. Repeat for two more layers ending with cheese on top. Cover and cook on low for 4 hours.