1 lb ground beef 1 medium onion, chopped 2 cloves garlic, minced 3 medium potatoes, peeled and diced 4 cups beef broth 1 cup milk 1 cup shredded cheddar cheese 1 cup heavy cream (optional for creaminess) 1 tsp Worcestershire sauce 1 tsp mustard (yellow or Dijon) Salt and pepper to taste Toppings: diced pickles, crumbled bacon, green onions, more cheese