Beef & Pineapple Casserole

750 gms         Steak (can be more)

2                      Onions 

1 cup              Tomato Pulp (or1 tin whole peeled tomatoes)

2 Tb                Flour (to thicken)

1 Tb                Sugar

1 tsp                Mustard powder

1 Tb                Vinegar

2 Tb                Worchestershire sauce

¼ cup             Cold Water

1 small tin      Pineapple chunks

Mix together in Crock pot and boil as a casserole on slow for one day.  Before serving add 1 small can of pineapple pieces (if added too soon the pieces will lose their flavour). 

For variation, you can add chopped kumara, courgette or carrot.