Chicken Divan

1-1/2 lbs. ground beef 2 tbsp. fat 1/2 cup ketchup 2 tbsp. brown sugar 2 tsp. worcestershire sauce 1 tbsp. vinegar 2 tsp. dry or prepared mustard 1/2 tsp. salt dash of pepper Shape beef into 6 patties. Saute in hot fat until well browned on all sides. Combine remaining ingredients and pour over patties….