In crockpot, place cabbage wedges, onion, and
mushrooms. Sprinkle tapioca over vegetables. Place
frozen chicken pieces atop vegetables, pour spagetti
sauce over chicken. Cover; cook on low-heat setting
for 10-12 hours or on high-heat setting for 4 1/2-5
1/2 hours. Transfer to a serving platter. Sprinkle
with parmesan cheese.