Crockpotladies.com lists more than 30 hamburger crock pot recipes, including Crock-Pot Sweet Sloppy Joes, Crock-Pot Taco Soup and Crock-Pot Mediterranean Beef and Rice. The website details tips on how to save money on beef, reduce dinner preparation time by cooking and freezing and how to buy hamburger by fat content.
The recipe for Crock-Pot Sweet Sloppy Joes requires 1 pound of ground beef, 1 thinly chopped yellow onion, 1 stalk of thinly sliced or shredded celery, 3/4 cup ketchup and 1/2 teaspoon yellow mustard. For taste, the site suggests adding 1 tablespoon brown sugar, 1 teaspoon salt and 1/4 teaspoon pepper.
To prepare, brown the ground beef and combine all ingredients into a Crock-Pot. Stir the ingredients until well mixed. Cook on a low setting for four hours. Serve on bread or buns.