Press spinach between paper towels to remove moisture. Combine spinach with next 9 ingredients in a large bowl. Place 2 or 3 noodles in bottom of crockpot, breaking to ift, Spread 1/3 of chicken mixture over noodles. Sprinke with 1 cup Mozarella. Repeat 2 more times, ending with Mozarella. Cover, cook on high for 1 hour. Reduce to low and cook 5 more hours.