Cream Substitute: Use half and half instead of heavy cream and milk if that is what you have on hand.
Add-Ins: Celery, carrots and baby spinach make great additions to the soup. They can be sautéed with the onions and mushrooms.
Protein: Any leftover chicken or turkey is excellent in wild rice soup. Crumbled bacon, smoked sausage or ground beef would also be delicious.
Storage: Store leftover soup in an airtight container in the refrigerator up to 3 days. Place in a freezer container and freeze up to 3 months.
Reheat: Cook soup in a saucepan over medium heat, stirring occasionally until heated through.