Mash the beans with the vinegar, Worcestershire sauce and garlic or process in a food processor.
Add the mince, onion, celery, breadcrumbs, oat bran, beef stock powder, pepper and egg and mix lightly to form a stiff mixture.
Shape into eight patties. Coat a pan with the oil and fry the patties for five minutes a side.
Sauté one chopped onion, one grated apple, 1 ml chopped garlic in 5 ml olive oil until onion is transparent.
Add 60 ml tomato sauce, one chopped tomato, 125 ml water, 20 ml brown sugar, 10 ml Worcestershire sauce, 5 ml salt and 10 ml prepared mustard. Simmer for five minutes.
Place the patties or hamburger rolls (do not spread with butter) along with tomato, lettuce leaves and the barbecue sauce.
Nutritional value per serving
Glycaemic index 57, fat 7 g, carbohydrate 53 g, fibre 7 g, protein 16 g, kJ 1 454, One hamburger (patty and roll) with barbecue sauce = 2 starch, 2 protein and 1 unlimited vegetable.