Brown ground beef and drain. Spoon 1 cup spaghetti sauce in bottom of 4 quart crockpot. Mix remaining sauce with beef. Place 2 uncooked lasagna noodles on sauce in crock pot. Spread 1/3 meat mixture on top of noodles. Spread 3/4 cup cottage cheese over meat. Sprinkle 1/2 cup mozzarella cheese over cottage cheese.
Place another layer of ingredients as above. Sprinkle parmesan cheese over top. Cook on low for 4 hours. If cooked much longer it gets a bit well done.