Brown ground beef with onion, drain

Combine ingredients in crockpot, EXCEPT for milk, flour and cheddar cheese

Stirr together and cook on low for 7 hours

In the last 10 minutes combine milk and flour together, whisk until there is no more clumps

Add the flour milk mixture to the crock pot, stirr

Add the cheddar cheese, the soup is ready when all the cheese has melted

Serve with crumbled bacon