Drain the beans, cover with fresh water & bring to a boil. Boil hard
for 10 minutes, reduce heat, cover & simmer until tender, about 2
hours, depending on the age of the beans. Drain & set aside. When
cooled, mash.
Heat olive oil & saute the onions until very soft, 10 minutes. Add
to the mashed soya beans. Stir in the tomato paste, olives, parsley,
salt if necessary (remember that the olives already add a salty
flavour to the rest of the ingredients) & sesame seeds.
Spoon into a serving dish & chill for at least 30 minutes before
serving. Serve with crackers or toast sliced into fingers.