Cook the bacon in a skillet on medium heat until crispy, then set aside, leaving the fat in the pan. (When the bacon is cool, crumble it and put it in the refrigerator.)
Cook the beef in the pan until browned on all sides, t hen place the beef in a slow cooker.
Cook the onions in the pan until translucent, then add to the slow cooker.
Add the remaining ingredients to the slow cooker and cook on low for 7 hours.