This soup is an excellent recipe for cooking in your crockpot or slow cooker. However, you’ll have to brown the sausage, onions, and garlic first. Add the browned ingredients to the crock pot, along with all the other ingredients except the cream, tortellini, and spinach. Cover the pot. Cook the soup on high for three to four hours or low for seven to eight hours. Half an hour before serving, add the heavy cream, tortellini, and spinach