Ingredients 500g chuck steak 1 onion 3 garlic cloves 1 celery stick 1/4c passata 2 c beef stock 1 tsp worstershire sauce salt and pepper to taste 150g mixed mushrooms – shitake, swiss brown, field 1 tbs cornflour 1 tbs water Mashed potatoes 6 potatoes 2 tbs butter 1/4 c milk – more or less may be