Boil cawliflower 3 minutes. Drain and set aside. Peel pickling onions, cut cucumbers in slices and boil green beans until tender. Set all these vegetables aside. In large canning kettle, fry sliced mushrooms in the oil, add ketchup, cut green beans and red peppers. Simmer 10-15 minutes. Add all the vegetables, olives and remaining ingredients (separate anchovies and break up tuna), simmer for another 12 minutes.