It was quite simple and yes - sloppy. We browned 2 pounds of happy cow beef, placed it in the slow cooker and added a whole bunch of stuff. Namely: half a chopped onion, 1 chopped green pepper, 2 tablespoons mustard, 1 tablespoon Worcestershire sauce, 1 can tomato sauce, half of that can worth of water, roughly one half cup of ketchup, a quarter cup of brown sugar, 2 tablespoons of apple cider vinegar, a little salt and pepper, and 1/8 cup of flour.
We turned the bad boy to low, turned to more pressing matters for about 8 to 9 hours and ate.
To do so we got a bag of hamburger buns. The girls loved it!