1 pork tenderloin
1 package onion soup mix
1 can cranberries (whole or jelly)
1 small bottle Russian salad dressing (regular or light)
Mix the onion soup, cranberries, and Russian dressing.
Place the tenderloin in a crock pot and spoon the soup mixture over the top of the tenderloin.
Cook on low for 4 to 6 hours.
Serve over rice.